Radar aids to navigation / 
[prepared under the supervision of] Office of Scientific Research and Development, National Defense Research Committee. 
 - New York :  McGraw-Hill Book Co.,  1947. 
 - xiii, 389 p.  illus., maps, diagrs.  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radar.<br/>Navigation.<br/>Loran.
<br/><br/><label>Dewey Class. No.: </label>621.38  / RAD 1947