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

 - New Delhi  BPB Publications  2001 
 - iv, 205p.  
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>8176564478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication<br/>Electronic bell<br/>Modem -- A 300-Baud<br/>Projects -- Telephone<br/>Telephone Projects