Dyfyniad APA

Heady, E. O. (1964). Economics of agricultural production and resource use. Prentice-Hall of India.

Dyfyniad Arddull Chicago

Heady, Earl O. Economics of Agricultural Production and Resource Use. New Delhi: Prentice-Hall of India, 1964.

Dyfyniad MLA

Heady, Earl O. Economics of Agricultural Production and Resource Use. Prentice-Hall of India, 1964.

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