एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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