APA استشهاد

Olver, P. J. (2014). Introduction to partial differential equations. Springer.

استشهاد بنمط شيكاغو

Olver, Peter J. Introduction to Partial Differential Equations. New York: Springer, 2014.

MLA استشهاد

Olver, Peter J. Introduction to Partial Differential Equations. Springer, 2014.