Manual of air navigation 

 -  1936 
 - (Its Air publication, 1234) .
<br/><br/><label>Standard No.: </label>37403 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INDUSTRIAL ARTS
<br/><br/><label>Dewey Class. No.: </label>MY284, G6.1 close sec