एपीए उद्धरण

Villadsen, J. M. (1978). Solution of differntial equation models by polynomial approximation. Prentice Hall.

शिकागो स्टाइल उद्धरण

Villadsen, John Michelsen. Solution of Differntial Equation Models by Polynomial Approximation. New Jersey: Prentice Hall, 1978.

एमएलए उद्धरण

Villadsen, John Michelsen. Solution of Differntial Equation Models by Polynomial Approximation. Prentice Hall, 1978.