Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.