Joel, Amos E <br/><br/>
Electronic switching: central office systems of the world  
edited by Amos E. Joel, Jr. 
 - New York:  The Institute of Electrical and Electron  1976 
 - vii, 279p. : ill 
<br/><br/><label>ISBN: </label>0879420790 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone switching systems, Electronic<br/>Telephone stations
<br/><br/><label>LC Class. No.: </label>TK 6397 Ele