APA استشهاد

Folland, G. B. (2003). Introduction to partial differential equations.-2nded (2nd ed.). Princeton University Press.

استشهاد بنمط شيكاغو

Folland, G. B. Introduction to Partial Differential Equations.-2nded. 2nd ed. New Delhi.: Princeton University Press, 2003.

MLA استشهاد

Folland, G. B. Introduction to Partial Differential Equations.-2nded. 2nd ed. Princeton University Press, 2003.