Spencer, John <br/><br/>
Global positioning system: a field guide for the social sciences 

 - 1st 
 - Oxford  Blackwell publishing  2003 
 - xii,218 p. 
<br/><br/><label>ISBN: </label>1-4051-0185-7 
<br/><br/><label>Subjects--Index Terms: </label>Global positioning system