GPS for Walkers: An Introduction to Gps,Digital Maps and Geocaching (Pathfinder Guide)
by Clive Thomas,Ark Creative
ISBN 13: 9780711744455
Format: Paperback (96 pages) Publisher: Ordnance Survey Published: 01 Aug 2013
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GPS for Walkers in Western Europe (Pathfinder) (Pathfinder Guide)
by Clive Thomas
ISBN 13: 9781854584939
Format: Paperback (96 pages) Publisher: Crimson Publishing Published: 01 Oct 2009
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ISBN 13: 9780002180832
Format: Hardcover (192 pages) Publisher: HarperCollins Distribution Services Published: Apr 1984