Chapuis, Robert J  <br/><br/>
100 years of telephone switching (1878-1978) 

 - Amsterdam:   North Holland Publishing Company,   1982 
 - 481p. 
 - Studies in telecommunication vol.1 .
<br/><br/>Part1 Manual and electromechanical switching 
<br/><br/><label>ISBN: </label>0-444-86289-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone
<br/><br/><label>Subjects--Index Terms: </label>Switching 
<br/><br/><label>Universal Decimal Class. No.: </label>621/395(091)  / M2.1