Helfrick, Albert D.  <br/><br/>
Modern electronic instrumentation and measurement techniques /  
Albert D. Helfrick and William David Cooper.  
 - New Delhi :   PHI Learning Pvt Ltd,   c1990 | 2011.  
 - xi, 446 p. ;   24 cm.  
<br/><br/><label>ISBN: </label>9788120307520 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric measurements. <br/>Electronic instruments. 
<br/><br/><label>Dewey Class. No.: </label>621.37  / HEL