Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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