Παραπομπή APA

Kelley, W. G., & Peterson, A. C. (2001). Difference equations: An introduction with applications (2nd ed.). Harcourt Academic Press.

Παραπομπή Chicago Style

Kelley, Walter G., και Allan C. Peterson. Difference Equations: An Introduction with Applications. 2nd ed. San Diego: Harcourt Academic Press, 2001.

Παραπομπή MLA

Kelley, Walter G., και Allan C. Peterson. Difference Equations: An Introduction with Applications. 2nd ed. Harcourt Academic Press, 2001.