History 105 Land tenure 86 Motion picture plays, Spanish 67 Architecture 60 Arquitectura 57 urban and land use planning 50 Education 43 more ... Educación 37 History and criticism 36 Planificación urbana y uso de las tierras 36 Law and legislation 34 Land reform 32 Tenencia de la tierra 32 Land use 31 Criticism and interpretation 30 Motion picture plays 25 Politics and government 25 Historia 24 Man-woman relationships 22 Social conditions 19 Curricula 17 Women 17 Urbanization 16 Philosophy 15 Planificación urbana y de uso de las tierras 14 Storyboards 14 Economic conditions 13 Indians of South America 13 Mexican Americans 13 Reforma agraria 13 less ...