H - Gwyddor Gymdeithasol 609 F - Hanes Americanaidd Cyffredinol 333 Z - Gwyddor Llyfrgell 192 P - Iaith a Llenyddiaeth 86 J - Gwyddor Gwleidyddiaeth 51 L - Addysg 44 N - Celfyddyd Gain 43 D - Hanes y Byd 30 B - Athroniaeth, Seicoleg, Crefydd 29 G - Daearyddiaeth, Anthropoleg, Hamdden 29 K - Y Gyfraith 26 C - Gwyddorau Hanesyddol 24 A - Gwaith Cyffredinol 23 R - Meddygaeth 23 Q - Gwyddoniaeth 22 M - Cerddoriaeth 21 E - Hanes yr Unol Daleithiau 18 U - Gwyddor Filwrol 15 S - Amaethyddiaeth 13 T - Technoleg 5 Gweld pob un ...

United Nations Economic Commission for Latin America and the Caribbean 78 Pan American Union 53 Organization of American States General Secretariat 35 Inter-American Foundation 30 University of London Institute of Latin American Studies 29 United Nations Economic Commission for Latin America 26 Inter-American Development Bank 25 Organization of American States 21 Inter-American Economic and Social Council 17 United States Department of Agriculture. Economic Research Service 17 Institute for Latin American Integration 16 Columbus Memorial Library 14 United States Agency for International Development 12 United States Foreign Broadcast Information Service 11 Pan American Union Division of Intellectual Cooperation 10 United Nations Economic Commission for Latin America and the Caribbean. Economic Development Division 10 University of California, Los Angeles Latin American Center 10 Asociación Latinoamericana de Integración 9 Asociación Latinoamericana de Libre Comercio 9 Benson Latin American Collection 9 CELADE (Organization) 9 Pan American Sanitary Bureau 9 Inter-American Court of Human Rights 8 Inter-American Statistical Institute 8 Latin American Reserve Fund 8 Library of Congress Hispanic Foundation 8 UCLA Latin American Center 8 American Universities Field Staff 7 Centro de Estudios Monetarios Latinoamericanos 7 Library of Congress 7 Gweld pob un ...

Spanish 1,222 English 1,015 Portuguese 132 French 108 German 45 Multiple 26 Russian 13 Italian 11 Yiddish 7 Chinese 6 Catalan 5 Dutch 5 Japanese 2 Latin 2 Creole 1 Czech 1 Danish 1 Greek 1 Hebrew 1 No linguistic content 1 Swedish 1 Undetermined 1 Gweld pob un ...

1945- 125 1982- 87 1980- 46 Since 1945 44 20th century 26 1945-1982 21 Since 1980 20 1948-1980 18 1948- 17 Since 1982 17 21st century 14 1900 - 1999 7 1900-1999 7 1918- 6 1946- 4 1979- 4 1999- 4 1783-1830 3 1817-1860 3 1830-1948 3 1958- 3 1970- 3 19th century 3 2000-2099 3 Since 1958 3 To 1830 3 Wars of Independence, 1806-1830 3 1931-1939 2 1955-1983 2 1960- 2 Gweld pob un ...