50 obras del ciudad
Buenos Aires. Fundación Banco de la Ciudad. 1996. 38 p.

50 obras del Salón Michelena
Palenzuela, Juan Carlos
Caracas. Tierra de Gracia Editores. 1997. 164 p.

50 odd jobs: a wild and wacky rhyming guide to one-of-a-kind careers
Rosen, Michael J
Worthington, Ohio. Willowisp Press. c1988. [40] p.

50% off: a novel
Salmansohn, Karen
New York, N.Y. St. Martin's Press. 1993. 265 p.

50 of the highest paying careers in the 1990's-- and some of them don't even require a college degree
Daly City, CA. (P.O. Box 1131, Daly City 94017-1131). The Enterprises. c1990. iv, 104 p.

50 ognennykh let: k i͡ubilei͡u Belovskogo t͡sinkovogo zavoda
Shnaĭder, I. F
Kemerovo. Kemerovskoe knizhnoe izd-vo. 1980. 127 p.

50 old bridges of Lebanon, New Hampshire
Leavitt, Robert Hayes ; Chapman, Bernard F
Lebanon, N.H. Lebanon Historical Society. c1975. 32 p.

50 one-minute tips for better communication
Bozek, Phillip E
Los Altos, Calif. Crisp Publications. c1991. iv, 88 p.

50 one-minute tips for better communication, revised: a wealth of business communication ideas
Bozek, Phillip E
Menlo Park, Calif. Crisp Publications. c1998. viii, 125 p.

50 one-minute tips for trainers: a quick and easy guide
Van Daele, Carrie A
Menlo Park, Calif. Crisp Publications. c1995. viii, 96 p.

50 óperas en Madrid
[Madrid]. Fundación Central Hispano. [1994?]. 494 p.

50 opowiadań
Rudnicki, Adolf
Warszawa. Państwowy Instytut Wydawniczy. 1966]. 558 p.

50 originelle Museen in Norddeutschland
Kunst, Manfred
Hamburg. Convent. 2002. 107 p.

50 otages, mémoire sensible
Gasche, Etienne
Nantes. Editions du Petit Véhicule. [1991]. 1 v. (various pagings).

50 palæer og landsteder
Hartmann, Sys
[København]. Gyldendal. 1976. 173 p.

50 peças do Museu de Arte Sacra da Bahia
Calderón de la Vara, Valentin
[Salvador, Brazil]. Universidade Federal da Bahia. 1981. 124 p.

50 peintres contemporains: Espace Alpha : du 26 mai au 30 juin 1990, Argenteuil
Paris. Direction du développement culturel. 1990. 1 v. (unpaged).

50 pengusaha eksekutif profesional terbaik 2006: prestasi & reputasi
[Jakarta]. Pusat Profil dan Biografi Indonesia. [2006]. v, 364 p.

50 people every Christian should know: learning from spiritual giants of the faith
Wiersbe, Warren W
Grand Rapids, MI. Baker Books. 2009. p. cm.

50 personal WW II stories
Donaldson-Yarmey, Joan
Edmonton, Alta. JOMET. c1995. 133 p.

50 personnalités d'exception en Wallonie et à Bruxelles: XXe siècle
Robert, Yves ; Duchaussoy, Marie
Tournai (Belgique). La Renaissance du Livre. c2001. 1 v. (unpaged).

50 petites experiences en psychologie de l'epargnant et de l'investisseur, pour mieux reussir tous vos placements
Mangot, Mickae˜l
Paris. Dunod. c2007. 202 p.

50 phansa Maha Wachiralongko·n
Phra Nakho·n Si Ayutthaya. Sathaban Ratchaphat Phra Nakho·n Si Ayutthaya. 2545 [2002]. 156 p.

50 photoelectric circuits and systems
Smith, Peter S
London. Iliffe Books. [1972]. 83 p.

50 photographs
Lange, Jessica
Brooklyn, NY. powerHouse Books. 2008. p. cm.

50 photographs by Wallace Kirkland: [exhibition] the Art Institute of Chicago, September 12-November 1, 1952
Kirkland, Wallace
Chicago. The Institute. [1952?]. [8] p., [11] p. of plates.

50 phuchatkan: the executive role models
Wirat S©Œngthongkham
Krung Thep. Manager Classic. 2548 [2005]. 240 p.

50 pī bon sēnthāng prachāthipatai Thai: banthưk kānsammanā wichākān, nai wāra chalō̜ng Krung Rattanakōsin læ ramlưk kưng satawat prachāthipatai Thai
Krung Thēp. Kō̜ng Bannāthikān Wārasān Sētthasāt Kānmưang, Sathāban Wičhai Sangkhom, Čhulālongkō̜nmahāwitthayālai. 2526 [1983]. 30, 654 p., [12] p. of plates.

50 pictures: National Gallery of Ireland
Keaveney, Raymond
Dublin. The Gallery. 1981. 50 p.

50 pī khō̜ng sahākō̜n nai Prathēt Thai
[Bangkok. Krasūang Phatthanākān hǣng Chāt. 2510 i.e. 1967]. ca. 300 p.

50 pi Ongkan Songkhro Thahan Phans¡ʻk nai phraborommarachupatham =: The War Veterans Organization of Thailand under the royal patronage of his majesty the king
[Bangkok]. Ongkan Songkhro Thahan Phans¡ʻk. [1998]. 159 p.

50 pī phrathūnkramom kǣo čhāk phasoknikō̜n pai lǣo, 9 Mithunāyon 2489
Suphot Dāntrakūn
Nonthaburī. Sathāban Witthayāsāt Sangkhom. 2539 [1996]. 12, 149 p.

50 pī Rātchabandittayasathān, 31 Mīnākhom 2527
[Bangkok]. Rātchabandittayasathān. [1984]. 520 p., [58] p. of plates.

50 pī Samnak Rīan Wat Mahāthāt: chalō̜ng khrop rō̜p 50 pī Samnak Rīan Wat Mahāthāt, Čhangwat Nakhō̜n Phanom, 2 Mēsāyon 2528
[Nakhō̜n Phanom. Samnak Rīan Wat Mahāthāt. 2585 i.e. 1985]. 52 p., [8] p. of plates.

50 pī Sūan Sunanthā: kānčhat kānsưksā nai rō̜p 50 pī
Kō̜thō̜mō̜. [i.e. Krung Thēp Mahā Nakhō̜n]. Fāi Kānphim, Witthayālai Khrū Sūan Sunanthā. [1986]. 189 p., [4] p. of plates.

50 pī witthayāsāttrabandit, Čhulālongkō̜nmahāwitthayālai, 2476-2527
[Bangkok]. Khana Witthayāsāt, Čhulālongkō̜nmahāwitthayālai. 2527 [1984]. 342 p. (some folded).

50 places to find peace and quiet in New York: a guide to urban sanctuaries
Ishac, Allan
New York. Avon Books. c1991. ix, 54 p.

The 50 plus guide to retirement investing
David, Walter W
Homewood, Ill. Dow Jones-Irwin. c1987. ix, 146 p.

The 50-plus market: why the future is age neutral when it comes to marketing & branding strategies
Stroud, Dick
London . Kogan Page. 2005. xvi, 314 p.

50 plus one great books you should have read (and probably didn't)
Walsh, George
Waterville, Me. Thorndike Press. 2009. p. cm.

50 plus one questions to ask your doctor
Drake, Elizabeth
Detroit. Thorndike Press. c2008. 487 p.

50 plus one tips for going green
Smith, Alicia Marie
Waterville, Me. Thorndike Press. 2008. 477 p. (large print).

50 plus one tips to preventing identity theft
Drake, Elizabeth
Chicago . Encouragement Press. 214 p.

50 poemas
Moura, Emílio
[Rio de Janeiro]. Ministério da Educação e Cultura, Serviço de Documentação. [1961]. 96 p.

50 poemas de amor
Manuel Pérez Jares, José
[Spain. s.n. 1994?]. 107 p.

50 poemas escolhidos pelo autor
Andrade, Carlos Drummond de
[Rio de Janeiro]. Ministerio da Educac̜ão e Cultura, Servic̜o de Documentac̜ão. [1956]. 98 p.

50 poemas escolhidos pelo autor
Bandeira, Manuel
Sao Paulo. Cosac Naify. 2006. 91 p.

50 poemas escolhidos pelo autor
Bandeira, Manuel
[ ]. Ministério da Educação e Cultura, Serviço de Documentação. 1959. 84 p. ; 20 cm.

50 poemas escolhidos pelo autor
Ivo, Lêdo
[Rio de Janeiro]. Ministério da Educação e Cultura, Serviço de Documentação. [1966]. 74 p.

50 poemas escolhidos pelo autor
Schmidt, Augusto Frederico
[Rio de Janeiro]. Ministero da Eduação e Cultura, Serviço de Documentação. [1957]. 102 p.

50 poemas peruanos ; [20 cuentos peruanos]
Soracel, Victor
Lima. Ediciones Rikchay Perú. 1980. 80, 130 p.

50 poemes: antologia
Alpera, Lluís
Barcelona. Edicions de la Magrana. 1992. 115 p.

50 poems: a celebration
Edmond, Lauris Dorothy ; Ricketts, Harry ; Sewell, Bill
Wellington. Bridget Williams Books. 1999. 95 p.

50 Poems
Harvey, Victoria Unruh
[Liberty, Mo. Quality Press. 1969]. 47 p.

50 poems
Mandelʹshtam, Osip ; Meares, Bernard
New York. Persea Books. c1977. 117 p.

50 poesie
Marródan, Mario Ángel ; Siliato, Maurizio
[Giarre]. Associazione Torre Archirafi. 1997. 58 p.

50 poetas modernos
Roig, Pedro
Miami, Fla. Ediciones Universal. [1973]. 172 p.

50 popular woodworking projects
Lukowitz, Joseph J
Milwaukee. The Bruce publishing company. [c1938]. 80 p.

50 portrait lighting techniques for pictures that sell
Hart, John
New York. Amphoto. c1983. 144 p.

50 powerful ideas you can use to keep your customers
Timm, Paul R
Hawthorne, NJ. Career Press. c1995. 121 p.

50 powerful printed circuit board projects
Prochnow, Dave
Blue Ridge Summit, PA. Tab Books. c1988. xi, 198 p.

50 powerful ways to win new customers: fast, simple, inexpensive, profitable, and proven ideas you can use starting today!
Timm, Paul R ; Timm, Paul R
Franklin Lakes, NJ. Career Press. c1997. 124 p.

50 practical and decorative knots you should know
Blandford, Percy W
Blue Ridge Summit, PA. TAB Books. c1988. viii, 128 p.

50 practically perfect plants: high-impact, low-care garden choices
DiSabato-Aust, Tracy
Portland, Or. Timber Press. 2009. p. cm.

50 practical ways to take our kids back from the world
McManus, Michael J
Wheaton, Ill. Tyndale House Publishers. c1993. xviii, 315 p.

50 preguntas a los candidatos
Reyes Heroles, Federico
Mexico. Fondo de Cultura Economica. 1994. 429 p.

50 programs in BASIC for the home, school & office
Cole, Jim
Woodsboro, Md. ARCsoft Publishers. [1981]. 80 p.

50 prosperity classics: attract it, create it, manage it, share it ; wisdom from the best books on wealth creation and abundance
Butler-Bowdon, Tom
London . Nicholas Brealey Pub. 2008. p. cm.

50 proven ways to build more profitable menus
Marvin, Bill
Gig Harbor, WA. Hospitality Masters Press. c1998. 136 p.

50 proven ways to build restaurant sales & profit
Marvin, Bill
Gig Harbor, WA. Hospitality Masters Press. c1997. 132 p.

50 proven ways to enhance guest service
Marvin, Bill
Gig Harbor, WA. Hospitality Masters Press. c1998. 131 p.

50 proverbs: traditional and Christian wisdom
Lane, William
[Lusaka]. W. Lane. [between 1980 and 1994]. 50 p.