Hansen, R. D. (1979). Beyond the North-South stalemate. McGraw-Hill Book Co..
芝加哥风格引文Hansen, Roger D. Beyond the North-South Stalemate. New York: McGraw-Hill Book Co., 1979.
MLA引文Hansen, Roger D. Beyond the North-South Stalemate. McGraw-Hill Book Co., 1979.
警告：这些引文格式不一定是100％准确.