Dyfyniad APA

Nickels, W. G., McHugh, J. M., & McHugh, S. M. (2008). Understanding business (8th ed.). McGraw-Hill Irwin.

Dyfyniad Arddull Chicago

Nickels, William G., James M. McHugh, and Susan M. McHugh. Understanding Business. 8th ed. Boston: McGraw-Hill Irwin, 2008.

Dyfyniad MLA

Nickels, William G., et al. Understanding Business. 8th ed. McGraw-Hill Irwin, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.