Books by Proctor, Richard A. (Richard Anthony)
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Displaying results 1–8
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Myths and Marvels of Astronomy
Richard A. Proctor
6400 downloads
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Half-hours with the Telescope
Richard A. Proctor
850 downloads
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Pleasant Ways in Science
Richard A. Proctor
726 downloads
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Rough Ways Made Smooth: A series of familiar essays on scientific subjects
Richard A. Proctor
681 downloads
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Light Science for Leisure Hours
Richard A. Proctor
657 downloads
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Flowers of the Sky
Richard A. Proctor
604 downloads
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Half-Hours with the Stars
Richard A. Proctor
431 downloads
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Chance and Luck
Richard A. Proctor
253 downloads
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Displaying results 1–8