Παραπομπή σε μορφή APA (7η εκδ.)

Kessler, G. C., & Southwick, P. V. (1998). ISDN: Concepts, facilities and services (4th edition.). McGraw Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kessler, Gary C., και Peter V. Southwick. ISDN: Concepts, Facilities and Services. 4th edition. New York: McGraw Hill, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kessler, Gary C., και Peter V. Southwick. ISDN: Concepts, Facilities and Services. 4th edition. McGraw Hill, 1998.