History 328 Politics and government 79 Philosophy 78 History and criticism 73 Social aspects 55 Social conditions 54 methods 54 Mais ... Criticism and interpretation 37 Diseases 36 Education 36 Research 33 Social life and customs 33 Economic conditions 31 Political aspects 31 Political science 31 Study and teaching 31 diagnosis 27 Women 26 Foreign relations 25 therapy 25 Philosophers 22 Description and travel 21 Economics 21 Psychology 20 Science 20 Civilization 19 PUBLICACIONES PERIODICAS 19 Social sciences 19 Relations 18 Economic history 17 menos ...