APA aipamena

John Grogan. (2012). Marley: Firehouse Dog (I Can Read Level 2). HarperCollins.

Chicago Style aipamena

John Grogan. Marley: Firehouse Dog (I Can Read Level 2). HarperCollins, 2012.

MLA aipamena

John Grogan. Marley: Firehouse Dog (I Can Read Level 2). HarperCollins, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.