Global Positioning System :  a field guide for the social sciences / 
John Spencer ... [and others]. 
 - xii, 218 pages :  illustrations ;  24 cm. 
<br/><br/><label>ISBN: </label>1405101849 1405101857 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global Positioning System.
<br/><br/><label>LC Class. No.: </label>G109.5   / .G56 2003