History 97 Land tenure 86 Architecture 57 Arquitectura 55 urban and land use planning 50 Planificación urbana y uso de las tierras 36 Land reform 32 more ... Tenencia de la tierra 32 Land use 31 Historia 27 Law and legislation 23 Politics and government 23 Social conditions 19 History and criticism 18 Planificación urbana y de uso de las tierras 14 Economic conditions 13 Reforma agraria 13 Indians of South America 12 Spanish language 12 Urbanization 12 Criticism and interpretation 11 Mexican Americans 11 Government relations 9 Land use, Urban 9 Philosophy 9 Rural conditions 9 Agriculture 8 Land settlement 8 Social aspects 8 American literature 7 less ...