Nikels,William G, McHugh, J. . M., & McHugh, S. . M. (2002). Understanding business (6th.ed.-.). McGraw - Hill.
芝加哥风格引文Nikels,William G, James M. McHugh, 与 Susan M. McHugh. Understanding Business. 6th.ed.-. New York: McGraw - Hill, 2002.
MLA引文Nikels,William G, et al. Understanding Business. 6th.ed.-. McGraw - Hill, 2002.
警告：这些引文格式不一定是100％准确.