Albert D.helfrick. <br/><br/>
Modern electronic instrumentation  modern electronic instrumentation and measurement techniques /  [Book :] 
Helfrick , Albert D. 
 - u.s.a :  Prentice Hall,  1990. 
 - 446. 
<br/><br/><label>ISBN: </label>0135933854 
<br/><br/><label>Dewey Class. No.: </label>621.374