Subsistence agriculture and economic development.

By Wharton, Clifton R., 1926-. London : F. Cass, 1970 , First published 1969. | "Outgrowth of a seminar on subsistence and peasant economics ... sponsored by the Agricultural Development Council, Inc. and the Institute of Advanced Projects, Center for Cultural and Technical Interchange between East and West."

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The rural challenge :

Aldershot, Hampshire : Gower, 1981 , "International Association of Agricultural Economists" 0566004720

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University of Zambia Library Search for 'su:"Agriculture -- Developing countries -- Congresses."'

Subsistence agriculture and economic development.

The rural challenge :