Παραπομπή APA

Simmons, G. F. (1972). Differential equations with applications and historical notes. McGraw-Hill.

Παραπομπή Chicago Style

Simmons, George F. Differential Equations with Applications and Historical Notes. New York: McGraw-Hill, 1972.

Παραπομπή MLA

Simmons, George F. Differential Equations with Applications and Historical Notes. McGraw-Hill, 1972.