Cita APA (7th ed.)

Held, G. (1994). The complete modem reference: The technician's guide to installation, testing, and trouble-free communications (2nd ed.). Wiley.

Cita Chicago (17th ed.)

Held, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 2nd ed. New York: Wiley, 1994.

Cita MLA (9th ed.)

Held, Gilbert. The Complete Modem Reference: The Technician's Guide to Installation, Testing, and Trouble-free Communications. 2nd ed. Wiley, 1994.