APA (7th ed.) Zitazioa

Clawson, M., Landsberg, H. H., & Alexander, L. T. (1971). The agricultural potential of the Middle East. American Elsevier Pub. Co..

Chicago Style (17th ed.) Zitazioa

Clawson, Marion, Hans H. Landsberg, eta Lyle T. Alexander. The Agricultural Potential of the Middle East. New York: American Elsevier Pub. Co., 1971.

MLA (9th ed.) Zitazioa

Clawson, Marion, et al. The Agricultural Potential of the Middle East. American Elsevier Pub. Co., 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.