1. Electronic switching: digital central office systems of the world
پدیدآورنده : edited by Amos E. Joel Jr
کتابخانه: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
موضوع : Addresses, essays, lectures ، Telephone switching systems, Electronic
رده :
TK
6397
.
E364
1982
