Columbia subject headings:
Agriculture, Cooperative--Peru.
Cornell Peru Project.
Indians of South America--Land tenure.
Indians of South America--Peru--Economic conditions.
Harvard subject headings:
Agriculture, Cooperative--Peru.
Cornell Peru Project.
Indians of South America--Land tenure
Indians of South America--Peru--Economic conditions
Princeton subject headings:
Agriculture, Cooperative--Peru.
Cornell Peru Project.
Indians of South America--Land tenure.
Indians of South America--Peru--Economic conditions.