Furnas, C. C., & McCarty, J. (1981). The Engineer (Ed.2.).
Dyfyniad Arddull ChicagoFurnas, C C., and Joe McCarty. The Engineer. Ed.2. Hong, Life-Time Books, 1981.
Dyfyniad MLAFurnas, C C., and Joe McCarty. The Engineer. Ed.2. 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.