Sheldon, S. (2004). Are you afraid of the dark? Harper Collins.
Dyfyniad Arddull ChicagoSheldon, Sidney. Are You Afraid of the Dark? London: Harper Collins, 2004.
Dyfyniad MLASheldon, Sidney. Are You Afraid of the Dark? Harper Collins, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.