Air navigation  pt. VII, nautical astronomy and celestial navigation 
U. S. Navy 
 - New York  McGraw-Hill  1944 
 - ix, 198p. 
 - Flight preparation training series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air navigation<br/>Celestial navigation<br/>NASA thesaurus<br/>Navigation
<br/><br/><label>Universal Decimal Class. No.: </label>521.9  / USN