Letham Lawrence, Letham Alex:
GPS Made Easy: Using Global Positioning Systems in the Outdoors
Mountianeers Books , 2008
Quality paperback, 187 pages
Size: 216x145 mm
ISBN: 9781594851032
ISBN-10: 1594851034
Lawrence Letham
Lawrence Letham, An Electrical Engineer, Is An Avid Hiker And Camper Long Fascinated By Maps And The Art Of Navigation. He Lives In Arizona.

