Não informado. (1978). Rural Development Perspectives. U.S. Department of Agriculture, Economics, Statistics and Cooperative Service.
Citace podle Chicago (17th ed.)Não informado. Rural Development Perspectives. Washington: U.S. Department of Agriculture, Economics, Statistics and Cooperative Service, 1978.
Citace podle MLA (8th ed.)Não informado. Rural Development Perspectives. U.S. Department of Agriculture, Economics, Statistics and Cooperative Service, 1978.
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