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To see information about this book and where to buy: https://astronavigationdemystified.com/astro-navigation-demystified-2/
For information about this book and where to buy: https://astronavigationdemystified.com/applying-mathematics-to-astro-navigation-3/
For information about this book and where to buy: https://astronavigationdemystified.com/astronomy-for-astro-navigation-2/
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