APA (7th ed.) Citation

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2005). Understanding business (séptima edición.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Nickels, William G., James M. McHugh, and Susan M. McHugh. Understanding Business. séptima edición. Boston, MA: McGraw-Hill, 2005.

MLA (9th ed.) Citation

Nickels, William G., et al. Understanding Business. séptima edición. McGraw-Hill, 2005.