The Froehlich/Kent Encyclopedia of Telecommunications: Volume 10 - Introduction to Computer Networking to Methods for Usability Engineering in Equipment Design

The Froehlich/Kent Encyclopedia of Telecommunications: Volume 7 - Electrical Filters: Fundamentals and System Applications to Federal Communications Commission of the United States

The Froehlich/Kent Encyclopedia of Telecommunications: Volume 16 - Subscriber Loop Signaling to Teletraffic Theory and Engineering

The Froehlich/Kent Encyclopedia of Telecommunications: Volume 13 - Network-Management Technologies to NYNEX

The Froehlich/Kent Encyclopedia of Telecommunications: Volume 4 - Communications Human Factors to Cryptology