Kessler, G. C., & Southwick, P. V. (1996). ISDN: Concepts, facilities and services (3rd ed.). Mc Graw Hill.
Chicago Style (17th ed.) CitationKessler, Gary C., and Peter V. Southwick. ISDN: Concepts, Facilities and Services. 3rd ed. New York: Mc Graw Hill, 1996.
MLA (9th ed.) CitationKessler, Gary C., and Peter V. Southwick. ISDN: Concepts, Facilities and Services. 3rd ed. Mc Graw Hill, 1996.
Warning: These citations may not always be 100% accurate.