Παραπομπή APA

Greenspan, D. (1961). Introduction to partial differential equations. McGraw-Hill.

Παραπομπή Chicago Style

Greenspan, Donald. Introduction to Partial Differential Equations. Bombay: McGraw-Hill, 1961.

Παραπομπή MLA

Greenspan, Donald. Introduction to Partial Differential Equations. McGraw-Hill, 1961.