Allen, R. Y., Spohn, R. F., & Wilson, I. H. (1987). Selling dynamics. McGraw-Hill.
芝加哥风格引文Allen, Robert Y., Robert F. Spohn, 与 I. Herbert Wilson. Selling Dynamics. New York: McGraw-Hill, 1987.
MLA引文Allen, Robert Y., et al. Selling Dynamics. McGraw-Hill, 1987.
警告：这些引文格式不一定是100％准确.