Sonde, B.S <br/><br/>
Special purpose amplifiers 

 - New Delhi  Tata McGraw-Hill Publishing Company Ltd.  1979 
 - xiii+128p 
 -  Monographs on solid state electronic instrumentation Vol. 2 .
<br/><br/><label>Universal Decimal Class. No.: </label>621.375  / : 621.39 SON.79