Dülfer, E. (1974). Operational efficiency of agricultural cooperatives in developing countries. Food and Agriculture Organization of the United Nations ; [sold by] Unipub.
Lua i Stíl Chicago (17ú heag.)Dülfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Rome : New York: Food and Agriculture Organization of the United Nations ; [sold by] Unipub, 1974.
Lua MLA (8ú heag.)Dülfer, Eberhard. Operational Efficiency of Agricultural Cooperatives in Developing Countries. Food and Agriculture Organization of the United Nations ; [sold by] Unipub, 1974.
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