APA (7th ed.) Citation

Bellman, R., & Cooke, K. L. (1963). Differential-difference equations. Academic Press.

Chicago Style (17th ed.) Citation

Bellman, Richard, and Kenneth L. Cooke. Differential-difference Equations. New York: Academic Press, 1963.

MLA (8th ed.) Citation

Bellman, Richard, and Kenneth L. Cooke. Differential-difference Equations. Academic Press, 1963.

Warning: These citations may not always be 100% accurate.