Ram, A. (1997). Fundamentals of polymer engineering. Plenum Press.
Dyfyniad Arddull ChicagoRam, Arie. Fundamentals of Polymer Engineering. New York: Plenum Press, 1997.
Dyfyniad MLARam, Arie. Fundamentals of Polymer Engineering. Plenum Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.