History 109 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 Historia 28 Criticism and interpretation 27 Motion picture plays 25 Politics and government 24 Law and legislation 23 Man-woman relationships 22 Social conditions 20 Mexican Americans 14 Planificación urbana y de uso de las tierras 14 Storyboards 14 Economic conditions 13 Reforma agraria 13 Spanish language 13 Indians of South America 12 Urbanization 12 Women 11 Philosophy 10 Spanish drama 10 Computer graphics 9 less ...