Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2010). Understanding business (9th edition.). McGraw-Hill Irwin.
Chicago Style (17. basım) AtıfNickels, William G., James M. McHugh, ve Susan M. McHugh. Understanding Business. 9th edition. New York, NY: McGraw-Hill Irwin, 2010.
MLA (8th ed.) AtıfNickels, William G., et al. Understanding Business. 9th edition. McGraw-Hill Irwin, 2010.
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