Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2008). Understanding business (8th ed.). McGraw-Hill Irwin.
Chicago Style aipamenaNickels, William G., James M. McHugh, and Susan M. McHugh. Understanding Business. 8th ed. Boston: McGraw-Hill Irwin, 2008.
MLA aipamenaNickels, William G., et al. Understanding Business. 8th ed. McGraw-Hill Irwin, 2008.
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