GPS for mariners 
Sweet, Robert J. 
 -  Mc Graw-Hill.  2003 
 - vi, 170 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-07-141075-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial satellites in navigation.
<br/><br/><label>Dewey Class. No.: </label>M 623.893 Sw3g 2003