Navy electricity and electronics training series 

 - Washington, D.C. :  United States Government Printing Office ,  1980 
 - Various pagings ;  26 cm. 
<br/><br/> NAVEDTRA 172-15-00-80 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Navigation<br/>Global positioning system
<br/><br/><label>Dewey Class. No.: </label>629.045