Basic electronics : A text-Lab manual 
Zbar, Paul B. 
 - Fourth edition. 
 -  Mc Graw-Hill Book Company, Inc.  1976 
 - 305 pages. 
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<br/><br/><label>ISBN: </label>0-07-072761-9 
<br/><br/><label>Dewey Class. No.: </label>621.381 Z1b 1976