Orman, Leonard M. <br/><br/>
Electronic navigation 

 - Maryland :  Weems Systems of Navigation,  1950 
 - 222 p. :  il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELECTRONICA EN NAVEGACION<br/>RADAR
<br/><br/><label>Dewey Class. No.: </label>621.3848  / O73