APA (7 ম সংস্করণ) উদ্ধৃতি

Não informado. (1971). American bibliography of agricultural economics. University of Kentucky, Department of Agricultural Economics, American Agricultural Economics.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Não informado. American Bibliography of Agricultural Economics. Lexington, Ky: University of Kentucky, Department of Agricultural Economics, American Agricultural Economics, 1971.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Não informado. American Bibliography of Agricultural Economics. University of Kentucky, Department of Agricultural Economics, American Agricultural Economics, 1971.

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