Stephen, Lieut I. J. <br/><br/>
Piloting ocean navigation / 
by Lieut I. J. Stephen and U. S. Coast Guard 
 - Washington, D.C. :  U.S. Government Printing Office,  1942 
 - 20 p. ;  24 cm. 
<br/><br/> A reading guide to duffer?s navigation and nautical astronomy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air-pilot guides--United States<br/>Air traffic control--United States<br/>Aids to navigation--United States
<br/><br/><label>Dewey Class. No.: </label>387.740420973