APA aipamena

Earl O Heady. (1964). Economics of agricultural production and resource use. Newdelhi.

Chicago Style aipamena

Earl O Heady. Economics of Agricultural Production and Resource Use. Newdelhi, 1964.

MLA aipamena

Earl O Heady. Economics of Agricultural Production and Resource Use. Newdelhi, 1964.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.