History 136 Land tenure 86 Motion picture plays, Spanish 67 Architecture 64 History and criticism 64 Arquitectura 60 urban and land use planning 50 more ... Criticism and interpretation 45 Philosophy 36 Planificación urbana y uso de las tierras 36 Historia 33 Education 32 Land reform 32 Politics and government 32 Tenencia de la tierra 32 Land use 31 Law and legislation 27 Social conditions 27 Motion picture plays 25 Educación 22 Man-woman relationships 22 Social aspects 21 Indians of South America 20 Social life and customs 19 Women 17 Filosofía 16 Economic conditions 14 Planificación urbana y de uso de las tierras 14 Science 14 Spanish drama 14 less ...