Chang, R. (2005). Student study guide for use with Chemistry. Boston: Mc-Graw Hill.
Dyfyniad Arddull ChicagoChang, Raymond. Student Study Guide for Use With Chemistry. Boston: Mc-Graw Hill, 2005.
Dyfyniad MLAChang, Raymond. Student Study Guide for Use With Chemistry. Boston: Mc-Graw Hill, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.