History 167 Land tenure 86 Motion picture plays, Spanish 67 History and criticism 62 Architecture 58 Arquitectura 56 urban and land use planning 50 more ... Politics and government 43 Agriculture 39 Criticism and interpretation 37 Agronomía 36 Planificación urbana y uso de las tierras 36 Historia 35 Agronomy 34 Agricultura 32 Land reform 32 Tenencia de la tierra 32 Land use 31 Animal science 30 Law and legislation 28 Agronomia 27 Motion picture plays 25 Man-woman relationships 24 Catalan language 22 Science 20 Social conditions 20 Spanish literature 19 Technology 18 Catalán 17 Economic conditions 17 less ...