Ackroyd, Neil <br/><br/>
Global Navigation    A GPS User's guide.  [Book] 

 - London  Lloyds of lodon press Ltd.  1990 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>1850442320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Global Navigation : A GPS User's guide