Allen, R. Y., & Spohn, R. F. W. (1987). Selling Dynamics. McGraw-Hill.
Chicago Edition CitationAllen, Robert Y., and Robert F Wilson Spohn. Selling Dynamics. New York: McGraw-Hill, 1987.
MLA引文Allen, Robert Y., and Robert F Wilson Spohn. Selling Dynamics. McGraw-Hill, 1987.
警告:這些引文格式不一定是100%准確.