Παραπομπή σε μορφή APA (7η εκδ.)

Goldberg, S. I. (1986). An introduction to difference equations: With illustrative examples from economics, psychology, and sociology. Dover Publications, Inc.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Goldberg, Samuel I. An Introduction to Difference Equations: With Illustrative Examples from Economics, Psychology, and Sociology. New York: Dover Publications, Inc, 1986.

Παραπομπή σε μορφή MLA (8th εκδ.)

Goldberg, Samuel I. An Introduction to Difference Equations: With Illustrative Examples from Economics, Psychology, and Sociology. Dover Publications, Inc, 1986.