Παραπομπή APA

Nagle R. Kent. (1993). Fundamentals of differential equations and boundary value problems. Massachusetts: Addison Wesley.

Παραπομπή Chicago Style

Nagle R. Kent. Fundamentals of Differential Equations and Boundary Value Problems. Massachusetts: Addison Wesley, 1993.

Παραπομπή MLA

Nagle R. Kent. Fundamentals of Differential Equations and Boundary Value Problems. Massachusetts: Addison Wesley, 1993.

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