Ferry, J. D. (1970). Viscoelastic properties of polymers (2d ed.). Wiley.
Dyfyniad Arddull ChicagoFerry, John D. Viscoelastic Properties of Polymers. 2d ed. New York: Wiley, 1970.
Dyfyniad MLAFerry, John D. Viscoelastic Properties of Polymers. 2d ed. Wiley, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.