APA (7th ed.) Citation

Bellman, R., & Cooke, K. L. (1971). Modern elementary differential equations (2nd ed.). Dover Publications, Inc.

Chicago Style (17th ed.) Citation

Bellman, Richard, and Kenneth L. Cooke. Modern Elementary Differential Equations. 2nd ed. New York: Dover Publications, Inc, 1971.

MLA (8th ed.) Citation

Bellman, Richard, and Kenneth L. Cooke. Modern Elementary Differential Equations. 2nd ed. Dover Publications, Inc, 1971.