Bergquist, Carl J. <br/><br/>
Telephone projects   forelectronics experimenters 

 - New Delhi  BPB 
 - vii,23p.  23cm 
<br/><br/><label>ISBN: </label>8176564478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELEPHONY
<br/><br/><label>Dewey Class. No.: </label>621.385  / BER