Wilson, James N. - The Noon Fix: The simplest possible backup to GPS. The only battery required is in the watch.

Brand : Authorhouse, Binding : Taschenbuch, Edition : Illustrated, Label : AuthorHouse, Publisher : AuthorHouse, Format : Illustriert, medium : Taschenbuch, numberOfPages : 72, publicationDate : 2009-03-30, releaseDate : 2009-03-30, authors : Wilson, James N., ISBN : 1438958668 ...