Παραπομπή σε μορφή APA (7η εκδ.)

Kessler, G. C., & Southwick, P. V. (1997). ISDN: Concepts, Facilities and Services (3rd ed.). McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kessler, Gary C., και Peter V. Southwick. ISDN: Concepts, Facilities and Services. 3rd ed. New York: McGraw-Hill, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Kessler, Gary C., και Peter V. Southwick. ISDN: Concepts, Facilities and Services. 3rd ed. McGraw-Hill, 1997.