Crook, W. E. <br/><br/>
Elementary Handbook for Wireless Operators / 
W. E. Crook,   
 - London  Sir Issac Pitman  1941 
 - 24 p. 
<br/><br/>Signaling (Page-1), Electrical principles (Page-6), The basis of radio communications (Page-23), The recievers (Page-51). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication engineering
<br/><br/><label>Dewey Class. No.: </label>621.3825,CRO