Nickels, W. G., & McHugh, J. M. (1987). Understanding business (4th ed.). IRWIN.
芝加哥风格引文Nickels, William G., 与 James M. McHugh. Understanding Business. 4th ed. Chicago: IRWIN, 1987.
MLA引文Nickels, William G., 与 James M. McHugh. Understanding Business. 4th ed. IRWIN, 1987.
警告：这些引文格式不一定是100％准确.