Coddington, E. A., & Levinson, N. (1955). Theory of ordinary differential equations. Tata McGraw-Hill.
Dyfyniad Arddull ChicagoCoddington, Earl A., and Norman Levinson. Theory of Ordinary Differential Equations. Bombay: Tata McGraw-Hill, 1955.
Dyfyniad MLACoddington, Earl A., and Norman Levinson. Theory of Ordinary Differential Equations. Tata McGraw-Hill, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.