Παραπομπή APA

Villadsen, J. (1978). Solution of differential equation models. Prentice-Hall of India.

Παραπομπή Chicago Style

Villadsen, John. Solution of Differential Equation Models. N J: Prentice-Hall of India, 1978.

Παραπομπή MLA

Villadsen, John. Solution of Differential Equation Models. Prentice-Hall of India, 1978.