History 90 Land tenure 86 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 History and criticism 31 Land use 31 Criticism and interpretation 25 Motion picture plays 25 Law and legislation 23 Man-woman relationships 22 Politics and government 19 Historia 16 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 Spanish drama 12 Urbanization 12 Economic conditions 11 Women 11 Government relations 9 Land use, Urban 9 Rural conditions 9 less ...