Global positioning systems / 
editors by Viggo Asphaug, Elias Sorensen 
 - New York :  Nova Science Pub.,  c2010 
 - x, 247 p. :  ill., maps ;  26 cm. 
 - Space science, exploration and policies .
 - Space science, exploration and policies .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781607410126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global Positioning System