History 96 Land tenure 86 Motion picture plays, Spanish 67 Architecture 58 Arquitectura 56 urban and land use planning 50 History and criticism 36 more ... Planificación urbana y uso de las tierras 36 Land reform 32 Tenencia de la tierra 32 Land use 31 Criticism and interpretation 27 Motion picture plays 25 Politics and government 25 Law and legislation 24 Man-woman relationships 23 Social conditions 21 Historia 18 Economic conditions 16 Social aspects 15 Planificación urbana y de uso de las tierras 14 Spanish drama 14 Storyboards 14 Mexican Americans 13 Reforma agraria 13 Women 13 Indians of South America 12 Urbanization 12 Agriculture 9 Families 9 less ...