McGraw-Hill encyclopedia of science and technology. 

 - 5th ed. 
 - New York :  McGraw-Hill,  c 1982. 
 - Vols. :  ill. ;  28 cm. 
<br/><br/>V. 4- (dac-elec) ; 
<br/><br/>334  334 
<br/><br/><label>ISBN: </label>0-07-079280-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and technology--Encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>503 / M178