Παραπομπή APA

Poole, E. G. C. (1960). Introduction to the theory of linear differential equations. New York.

Παραπομπή Chicago Style

Poole, E G C. Introduction to the Theory of Linear Differential Equations. New York, 1960.

Παραπομπή MLA

Poole, E G C. Introduction to the Theory of Linear Differential Equations. New York, 1960.