Clawson, M., Landsberg, H. H., & Alexander, L. T. (1971). The agricultural potential of the Middle East. American Elsevier Pub. Co..
Chicago Style (17. basım) AtıfClawson, Marion, Hans H. Landsberg, ve Lyle T. Alexander. The Agricultural Potential of the Middle East. New York: American Elsevier Pub. Co., 1971.
MLA (9th ed.) AtıfClawson, Marion, et al. The Agricultural Potential of the Middle East. American Elsevier Pub. Co., 1971.