Arden, P. (2003). It's not how good you are, it's how good you want to be. Phaidon Press.
Dyfyniad Arddull ChicagoArden, Paul. It's Not How Good You Are, It's How Good You Want to Be. London: Phaidon Press, 2003.
Dyfyniad MLAArden, Paul. It's Not How Good You Are, It's How Good You Want to Be. Phaidon Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.