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Owen Gingerich

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Cover of 'Planetary, Lunar, and Solar Positions, New and Full Moons, A.D. 1650-1805'

Planetary, Lunar, and Solar Positions, New and Full Moons, A.D. 1650-1805

Cover of 'Eleven-digit Regular Sexagesimals and Their Recipricols'

Eleven-digit Regular Sexagesimals and Their Recipricols

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