Chapuis Robert J <br/><br/>
100 years of telephone switching (1878-1978). / 
 One hundred years of telephone switching (1878-1978) 
Robert J. Chapuis. 
 - Unrevised 2nd ed. 
 - Amsterdam ;  Washington, DC :  IOS Press :  Ohmsha,  c2003. 
 - 2 v. :  ill. ;  27 cm. 
<br/><br/>pt. 1. Manual and electromechanical switching (1878-1960's) / Robert J. Chapuis. -- pt. 2. Electronics, computers, and telephone switching (1960-1985) / by Robert J. Chapuis, Amos E. Joel Jr. 
<br/><br/><label>ISBN: </label>1586033492 4274906116 1586033727 4274906124  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone stations--History--20th century<br/>Telephone switching systems Electronic--History--20th century
<br/><br/><label>LC Class. No.: </label>TK6211 
<br/><br/><label>Dewey Class. No.: </label>621.387