APA引文

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

芝加哥风格引文

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

MLA引文

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

警告:这些引文格式不一定是100%准确.