Celestial navigation at sea : principles of nautical astronomy and great-circle sailing 
Ramirez, Cecilio C., Sr. 
 - 1st ed. 
 -  Gold Book Publications.  2013 
 - viii, 128 p. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Nautical astronomy.
<br/><br/><label>Dewey Class. No.: </label>M 629.04 R1731 2013