APA (7th ed.) Citation

Nickels William G., McHugh James M., & McHugh Susan M. (1999). Understanding business (5th ed.). Irwin/McGraw-Hill.

Chicago Style (17th ed.) Citation

Nickels William G., McHugh James M., and McHugh Susan M. Understanding Business. 5th ed. Irwin/McGraw-Hill, 1999.

MLA (8th ed.) Citation

Nickels William G., et al. Understanding Business. 5th ed. Irwin/McGraw-Hill, 1999.