Παραπομπή APA

Greenspan, D. (1961). Introduction to partial differential equations. Tata Mc Graw - Hill.

Παραπομπή Chicago Style

Greenspan, Donald. Introduction to Partial Differential Equations. New Delhi: Tata Mc Graw - Hill, 1961.

Παραπομπή MLA

Greenspan, Donald. Introduction to Partial Differential Equations. Tata Mc Graw - Hill, 1961.