Coddington, E. A. (1961). An introduction to ordinary differential equations. Prentice-Hall.
Cita Chicago (17th ed.)Coddington, Earl A. An Introduction to Ordinary Differential Equations. Engle-wood Cliffs, N. J.: Prentice-Hall, 1961.
Cita MLA (9th ed.)Coddington, Earl A. An Introduction to Ordinary Differential Equations. Prentice-Hall, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.