APA aipamena

Bieber, J. (2010). Never Say Never. [s. n.].

Chicago Style aipamena

Bieber, Justin. Never Say Never. [s. n.], 2010.

MLA aipamena

Bieber, Justin. Never Say Never. [s. n.], 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.