Held, G. (1994). The complete modem reference: The technician's guide to installation, testing, and trouble-free communications (2nd ed.). Wiley.
Chicago-referens (17:e uppl.)Held, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 2nd ed. New York: Wiley, 1994.
MLA-referens (9:e uppl.)Held, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 2nd ed. Wiley, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.