Rainville, E. D. (1969). Elementary differential equations (4th ed.). Macmillan.
Dyfyniad Arddull ChicagoRainville, Earl D. Elementary Differential Equations. 4th ed. New York: Macmillan, 1969.
Dyfyniad MLARainville, Earl D. Elementary Differential Equations. 4th ed. Macmillan, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.