Simmons, G. F. (1972). Differential equations with applications and historical notes. Tata McGraw-Hill.
Παραπομπή Chicago StyleSimmons, George F. Differential Equations with Applications and Historical Notes. New Delhi: Tata McGraw-Hill, 1972.
Παραπομπή MLASimmons, George F. Differential Equations with Applications and Historical Notes. Tata McGraw-Hill, 1972.
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