Arden,Paul. (2014). It's not how good you are it's how good you want to be. Phaidon Press Ltd.
Chicago Style aipamenaArden,Paul. It's Not How Good You Are It's How Good You Want to Be. Londan: Phaidon Press Ltd, 2014.
MLA aipamenaArden,Paul. It's Not How Good You Are It's How Good You Want to Be. Phaidon Press Ltd, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.