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Astro-Navigation From Square One To Ocean-Master
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At last! A book and e-book that teaches Astro-navigation by understanding! “Astro-navigation from Square One to Ocean-master” Published January 2011 by Authors Online. See at: astronav-square-one.com Every year sailors start reading astronav texts and most founder on the rocks of confusion. Why is this? astronav uses an entirely new language. *the subject requires an ability [...]Astro-Navigation From Square One To Ocean-Master is a post from: BooknSpire


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