APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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