Kessler, G. C., & Southwick, P. V. (1997). ISDN : concepts, facilities, and services / Gary C. Kessler and Peter V. Southwick: Concepts, facilities, and services (3rd ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationKessler, Gary C., and Peter V. Southwick. ISDN : Concepts, Facilities, and Services / Gary C. Kessler and Peter V. Southwick: Concepts, Facilities, and Services. 3rd ed. London: McGraw-Hill, 1997.
MLA (9th ed.) CitationKessler, Gary C., and Peter V. Southwick. ISDN : Concepts, Facilities, and Services / Gary C. Kessler and Peter V. Southwick: Concepts, Facilities, and Services. 3rd ed. McGraw-Hill, 1997.
Warning: These citations may not always be 100% accurate.