Nickels, W. G., McHugh, J. M., & McHugh, S. M. (1999). Understanding Business: 5th ed (Fifth Edition.). Irwin/McGraw-Hill.
Citace podle Chicago (17th ed.)Nickels, William G., James M. McHugh, a Susan M. McHugh. Understanding Business: 5th Ed. Fifth Edition. Boston / New York: Irwin/McGraw-Hill, 1999.
Citace podle MLA (9th ed.)Nickels, William G., et al. Understanding Business: 5th Ed. Fifth Edition. Irwin/McGraw-Hill, 1999.
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