Παραπομπή APA

Simmons, G. F., & Robertson, J. S. (1991). Differential equations with applications and historical notes (2nd ed.). New York: McGraw-Hill, Inc..

Παραπομπή Chicago Style

Simmons, George F., and John S. Robertson. Differential Equations With Applications and Historical Notes. 2nd ed. New York: McGraw-Hill, Inc., 1991.

Παραπομπή MLA

Simmons, George F., and John S. Robertson. Differential Equations With Applications and Historical Notes. 2nd ed. New York: McGraw-Hill, Inc., 1991.

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