Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2019). Understanding business (Twelfth edition.). McGraw-Hill Education.
芝加哥风格引文Nickels, William G., James M. McHugh, 与 Susan M. McHugh. Understanding Business. Twelfth edition. New York, NY: McGraw-Hill Education, 2019.
MLA引文Nickels, William G., et al. Understanding Business. Twelfth edition. McGraw-Hill Education, 2019.
警告：这些引文格式不一定是100％准确.