Held, G. (1997). The complete modem reference: The technician's guide to installation, testing, and trouble-free communications (3rd edition.). John Wiley & Sons.
Chicago Style (17th ed.) CitationHeld, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 3rd edition. New York: John Wiley & Sons, 1997.
MLA (8th ed.) CitationHeld, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 3rd edition. John Wiley & Sons, 1997.
Warning: These citations may not always be 100% accurate.