Clawson, M., Landsberg, H. H., & Alexander, L. T. (1971). The agricultural potential of the Middle East. American Elsevier Pub. Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClawson, Marion, Hans H. Landsberg, और Lyle T. Alexander. The Agricultural Potential of the Middle East. New York: American Elsevier Pub. Co., 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रClawson, Marion, et al. The Agricultural Potential of the Middle East. American Elsevier Pub. Co., 1971.