Rainville, E. D., & Bedient, P. E. (1974). Elementary differential equations. Mc Millan.
Dyfyniad Arddull ChicagoRainville, Earl D., and Phillip E. Bedient. Elementary Differential Equations. New york: Mc Millan, 1974.
Dyfyniad MLARainville, Earl D., and Phillip E. Bedient. Elementary Differential Equations. Mc Millan, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.