Chater, K. (1998). Production researchan introductionKathy Chater. Oxford.
Dyfyniad Arddull ChicagoChater, Kathy. Production Researchan IntroductionKathy Chater. Oxford, 1998.
Dyfyniad MLAChater, Kathy. Production Researchan IntroductionKathy Chater. Oxford, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.