Weems, P. V. H.  1889- <br/><br/>
Air navigation, British empire edition / 
P. V. H. Weems ; Edited by Arthur J. Hughes and P. F. Everitt. 
 - 2nd ed. 
 - London :  McGraw-Hill,  1942. 
 - xii, 519 p. :  illus. ;  23cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Navigation (Aeronautics)
<br/><br/><label>Dewey Class. No.: </label>629.1325  / WEA