History 102 Land tenure 86 Motion picture plays, Spanish 67 Architecture 58 Arquitectura 56 urban and land use planning 50 History and criticism 39 more ... Planificación urbana y uso de las tierras 36 Land reform 32 Tenencia de la tierra 32 Land use 31 Criticism and interpretation 28 Law and legislation 27 Motion picture plays 25 Historia 24 Man-woman relationships 22 Politics and government 22 Social conditions 18 Education 17 Educación 15 Philosophy 14 Planificación urbana y de uso de las tierras 14 Storyboards 14 Women 14 Indians of South America 13 Mexican Americans 13 Reforma agraria 13 Economic conditions 12 Science 12 Social aspects 12 less ...