Masterton W. L. William L. & Hurley C. N. Cecile Nespral. (1997). Chemistry: Principles & Reactions (3-rd ed.). New York, Saunders College Publishing, 1997.
Dyfyniad Arddull ChicagoMasterton W. L. William L. and Hurley C. N. Cecile Nespral. Chemistry: Principles & Reactions. 3-rd ed. New York, Saunders College Publishing, 1997, 1997.
Dyfyniad MLAMasterton W. L. William L. and Hurley C. N. Cecile Nespral. Chemistry: Principles & Reactions. 3-rd ed. New York, Saunders College Publishing, 1997, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.