APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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