Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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