Παραπομπή APA

Coddington, E. A., & Levinson, N. (1955). Theory of Ordinary differential equations.

Παραπομπή Chicago Style

Coddington, Earl A., και Norman Levinson. Theory of Ordinary Differential Equations. Bombayh, Tata Mc Graw Hill Publishing Company Ltd, 1955.

Παραπομπή MLA

Coddington, Earl A., και Norman Levinson. Theory of Ordinary Differential Equations. 1955.