Cita APA (7th ed.)

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (1999). Understanding Business: 5th ed (Fifth Edition.). Irwin/McGraw-Hill.

Cita Chicago (17th ed.)

Nickels, William G., James M. McHugh, i Susan M. McHugh. Understanding Business: 5th Ed. Fifth Edition. Boston / New York: Irwin/McGraw-Hill, 1999.

Cita MLA (9th ed.)

Nickels, William G., et al. Understanding Business: 5th Ed. Fifth Edition. Irwin/McGraw-Hill, 1999.