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