APA (7th ed.) Citation

Pennisi, L. L. (1972). Elements of ordinary differential equations. Holt, Rinehart and Winston, Inc.

Chicago Style (17th ed.) Citation

Pennisi, Louis L. Elements of Ordinary Differential Equations. New York: Holt, Rinehart and Winston, Inc, 1972.

MLA (9th ed.) Citation

Pennisi, Louis L. Elements of Ordinary Differential Equations. Holt, Rinehart and Winston, Inc, 1972.