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1
Sky and sextant : practical celestial navigation/
Published 1975“…New York : Van Nostrand Reinhold,…”
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2
Sky and sextant : practical celestial navigation/
Published 1978“…New York : Van Nostrand Reinhold,…”
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3
Shoreline and sextant : practical coastal navigation/
Published 1977“…New York : Van Nostrand Reinhold,…”
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4
Shoreline and sextant : practical coastal navigation/
Published 1977“…New York : Van Nostrand Reinhold,…”