APA (7th ed.) Zitazioa
Whetham, E. H. (1972). Agricultural marketing in Africa. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Whetham, Edith Holt. Agricultural Marketing in Africa. London: Oxford University Press, 1972.
MLA (9th ed.) Zitazioa
Whetham, Edith Holt. Agricultural Marketing in Africa. Oxford University Press, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.