Não informado. (1971). American bibliography of agricultural economics. University of Kentucky, Department of Agricultural Economics, American Agricultural Economics.
Chicago-viite (17. p.)Não informado. American Bibliography of Agricultural Economics. Lexington, Ky: University of Kentucky, Department of Agricultural Economics, American Agricultural Economics, 1971.
MLA-viite (8. p.)Não informado. American Bibliography of Agricultural Economics. University of Kentucky, Department of Agricultural Economics, American Agricultural Economics, 1971.
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