APA aipamena

Nickels, W. G. (2005). Understanding business. Boston, MA: McGraw-Hill/Irwin.

Chicago Style aipamena

Nickels, William G. Understanding Business. Boston, MA: McGraw-Hill/Irwin, 2005.

MLA aipamena

Nickels, William G. Understanding Business. Boston, MA: McGraw-Hill/Irwin, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.