French <br/><br/>
Understanding the GPS  An Introduction to The Global Positioning System: What It Is and Now It Works, 1st. Ed. 
by Gregory T. French 
 - [1st. Edition] 
 - Woodmont Avenue  Georesearch Inc.  1996 
 - x, 255p.  30 cm 
<br/><br/><label>ISBN: </label>0965572307 
<br/><br/><label>LCCN: </label>9680018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global Positioning System (GPS)