Witts, Alfred Thomas, <br/><br/>
The superheterodyne receiver;  its development, theory and modern practice, 

 - 7th ed. 
 - London,  Sir I. Pitman & sons, ltd.,  1944. 
 - vi, 210 p.  diagrs.  19 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Radio--Receivers and reception.
<br/><br/><label>Dewey Class. No.: </label>621.384  / WIT