TY - BOOK AU - Held, Gilbert TI - COMPLETE MODEM REFERENCE: THE TECHNICIAN'S GUIDE TO INSTALLATION, TESTING, AND TROUBLE-FREE COMMUNICATIONS SN - 0471154571 U1 - 004.64 PY - 1997/// CY - New York PB - John Wiley KW - Modems KW - Computer Interfaces -- Standards KW - Telecommunication -- Equipment And Supplies ER -