Norville, Warren. <br/><br/>
Celestial navigation step by step / 
Warren Norville. 
 - Camden :  International Marine Pub.,  [1973]. 
 - 157 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0877420289 
<br/><br/><label>LCCN: </label>72095225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nautical astronomy<br/>Navigation
<br/><br/><label>Dewey Class. No.: </label>527