APA (7th ed.) Citation

Kelley, W. G., & Peterson, A. C. (1991). Difference equations: An introduction with applications. Academic Press.

Chicago Style (17th ed.) Citation

Kelley, Walter G., and Allan C. Peterson. Difference Equations: An Introduction with Applications. Boston: Academic Press, 1991.

MLA (9th ed.) Citation

Kelley, Walter G., and Allan C. Peterson. Difference Equations: An Introduction with Applications. Academic Press, 1991.