Practical navigation;: A simplified handbook of chart-and-compass, electronic, and celestial navigation for boatmen
Описание
the safety of a boat and its pasasengers can depend on the ability of thoses in charge to know where they are at all times and to set and follow an accurate course to where they want to be. this book: practical navigation provides a simplified handbood of chart and comps, electronic, and celestial navigation for boatmen.
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