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

 - 1st 
 - New Delhi  BPB Publications  2001 
 - VP23p. 
<br/><br/> 15453 
<br/><br/><label>ISBN: </label>8176564478  99 
<br/><br/><label>Dewey Class. No.: </label>621.385  BER-T