History 200 Land tenure 86 Motion picture plays, Spanish 67 History and criticism 61 Architecture 60 Arquitectura 58 Historia 53 more ... urban and land use planning 50 General 43 Politics and government 42 Philosophy 41 Planificación urbana y uso de las tierras 36 Educación 33 Criticism and interpretation 32 Land reform 32 Tenencia de la tierra 32 Education 31 Filosofía 31 Land use 31 Law and legislation 31 Social conditions 31 Social aspects 26 Motion picture plays 25 Economic conditions 23 Man-woman relationships 23 Ciencias sociales 22 Medicina 22 Study and teaching 21 Women 21 Law 20 less ...