History 64 Economic conditions 51 PUBLICACIONES PERIODICAS 50 Economic history 49 Education 38 History and criticism 36 Social sciences 36 больше ... Social conditions 34 Politics and government 33 Economics 31 Research 29 Law 28 Philosophy 26 Civilization 24 Psychology 22 Study and teaching 22 Hispanic Americans 21 Electronic journals 20 Political science 18 Antiquities 17 Communication 16 Engineering 16 Ethnology 16 Science 16 Latin American literature 15 Business 14 Management 13 Literature 12 Social aspects 12 Spanish literature 12 меньше ...