Nickels, W. G., McHugh, S. M., & McHugh, J. M. (2006). Understanding business (7th.ed.). Mc Graw-Hill..
芝加哥风格引文Nickels, William G., Susan M. McHugh, 与 James M. McHugh. Understanding Business. 7th.ed. Boston: Mc Graw-Hill., 2006.
MLA引文Nickels, William G., et al. Understanding Business. 7th.ed. Mc Graw-Hill., 2006.
警告：这些引文格式不一定是100％准确.