1. Electronic switching
Author: / edited by Amos E. Joel, Jr
Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)
Subject: Telephone switching systems, Electronic,Telephone stations
Classification :
TK
6397
.
E364
2. Electronic switching: digital central office systems of the world
Author: edited by Amos E. Joel Jr
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Addresses, essays, lectures ، Telephone switching systems, Electronic
Classification :
TK
6397
.
E364
1982
