APA aipamena

Nickels, W. G. (2002). Understanding business. Boston: Mc Graw Hill Irwin.

Chicago Style aipamena

Nickels, William G. Understanding Business. Boston: Mc Graw Hill Irwin, 2002.

MLA aipamena

Nickels, William G. Understanding Business. Boston: Mc Graw Hill Irwin, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.