Blewitt, Mary <br/><br/>
Navigation for yachtsmen. 

 - 3rd. rev. ed. 
 - London     
 - 101p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>navigation for yachtsmen  Navigation  Nautical astronomy  Aeronautical astronomy 
<br/><br/><label>Dewey Class. No.: </label>527:629.125.12