Land tenure 86 History 82 Motion picture plays, Spanish 67 Architecture 57 Arquitectura 55 urban and land use planning 50 Planificación urbana y uso de las tierras 36 more ... Land reform 32 Tenencia de la tierra 32 Land use 31 Motion picture plays 25 History and criticism 23 Law and legislation 23 Man-woman relationships 22 Criticism and interpretation 20 Politics and government 20 Historia 17 Social conditions 16 Planificación urbana y de uso de las tierras 14 Storyboards 14 Mexican Americans 13 Reforma agraria 13 Indians of South America 12 Urbanization 12 Economic conditions 11 Spanish drama 10 Women 10 Government relations 9 Land use, Urban 9 Rural conditions 9 less ...