History 129 Land tenure 86 Motion picture plays, Spanish 67 Architecture 63 Arquitectura 59 History and criticism 59 urban and land use planning 50 more ... Criticism and interpretation 41 Agriculture 37 Agronomía 37 Planificación urbana y uso de las tierras 36 Politics and government 36 Agronomy 35 Land reform 32 Tenencia de la tierra 32 Land use 31 Agricultura 30 Animal science 30 Philosophy 29 Agronomia 27 Historia 27 Social conditions 27 Law and legislation 25 Motion picture plays 25 Man-woman relationships 23 Science 21 Education 20 Indians of South America 19 Social life and customs 19 General 17 less ...