Clawson, M., Landsberg, H. H., & Alexander, L. T. (1971). The agricultural potential of the Middle East. American Elsevier Pub. Co..
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Clawson, Marion, Hans H. Landsberg, ба Lyle T. Alexander. The Agricultural Potential of the Middle East. New York: American Elsevier Pub. Co., 1971.
MLA -ийн эшлэл (9 дэх хэвлэлт)Clawson, Marion, et al. The Agricultural Potential of the Middle East. American Elsevier Pub. Co., 1971.