APA aipamena

Blackman ,Jeff. (2003). Stop whining start selling. John Wiley & Sons.

Chicago Style aipamena

Blackman ,Jeff. Stop Whining Start Selling. John Wiley & Sons, 2003.

MLA aipamena

Blackman ,Jeff. Stop Whining Start Selling. John Wiley & Sons, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.