Gerfin, R. (1974). Laboratory investigations for modern physical science. Holt.
Dyfyniad Arddull ChicagoGerfin, Richard. Laboratory Investigations for Modern Physical Science. New York: Holt, 1974.
Dyfyniad MLAGerfin, Richard. Laboratory Investigations for Modern Physical Science. Holt, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.