APA (7th ed.) Citation

Kessler, G. C. (1990). ISDN: Concepts, facilities, and services. McGraw-Hill.

Chicago Style (17th ed.) Citation

Kessler, Gary C. ISDN: Concepts, Facilities, and Services. New York u.a: McGraw-Hill, 1990.

MLA (9th ed.) Citation

Kessler, Gary C. ISDN: Concepts, Facilities, and Services. McGraw-Hill, 1990.