APA-referens

Heady, E. O. (1964). economics of agricultural production and resource use. Prentice hall of India pvt. ltd.

Chicago-stil citat

Heady, Earl O. Economics of Agricultural Production and Resource Use. New Delhi: Prentice hall of India pvt. ltd, 1964.

MLA-referens

Heady, Earl O. Economics of Agricultural Production and Resource Use. Prentice hall of India pvt. ltd, 1964.

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