APA (7th ed.) Zitazioa

HALLETT, G. (1981). The Economics of agricultural policy. Basil Blackwell.

Chicago Style (17th ed.) Zitazioa

HALLETT, Graham. The Economics of Agricultural Policy. Oxford: Basil Blackwell, 1981.

MLA (9th ed.) Zitazioa

HALLETT, Graham. The Economics of Agricultural Policy. Basil Blackwell, 1981.