APA (7th ed.) Zitazioa

Upton, M. (1976). Agricultural production economics and resource-use. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Upton, Martin. Agricultural Production Economics and Resource-use. London: Oxford University Press, 1976.

MLA (9th ed.) Zitazioa

Upton, Martin. Agricultural Production Economics and Resource-use. Oxford University Press, 1976.