Economic conditions 74 Bibliography 57 History 52 Politics and government 38 Social conditions 30 Periodicals 27 Economic history 25 more ... Foreign relations 18 Indexes 14 Bibliographie 13 Economic policy 11 Histoire 9 Sources 9 Civilization 8 International relations 8 Vietnam War, 1961-1975 8 World politics 8 Bibliografie 7 Economics 7 Social history 7 Education 6 Foreign economic relations 6 Information services 6 Communism 5 Conditions économiques 5 Diplomatic relations 5 History, Military 5 Politique et gouvernement 5 Publishers and publishing 5 Relations extérieures 5 less ...