History 139 Land tenure 86 Architecture 58 Arquitectura 56 urban and land use planning 50 History and criticism 39 Planificación urbana y uso de las tierras 36 more ... Politics and government 34 Land reform 32 Tenencia de la tierra 32 Historia 31 Land use 31 Law and legislation 26 Catalan language 22 Catalán 17 Social aspects 16 Social conditions 16 Literatura europea 14 Planificación urbana y de uso de las tierras 14 Spanish language 14 Urbanization 14 Catalan literature 13 Criticism and interpretation 13 Reforma agraria 13 Economic conditions 12 Indians of South America 12 Spanish literature 12 Nationalism 11 Catalan poetry 10 Mexican Americans 10 less ...