Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Bellman, Richard Ernest, i Kenneth L. joint auth Cooke. Differential-difference Equations. New York: Academic Press, 1963.

Cita MLA (9th ed.)

Bellman, Richard Ernest, i Kenneth L. joint auth Cooke. Differential-difference Equations. Academic Press, 1963.