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1.
図書 |
by Frank E. Ross and Mary R. Calvert; made from negatives secured at the Mount Wilson and Lowell observatories by Frank E. Ross, with the assistance of Kenneth Newman
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2.
図書 |
K.F. Bottlinger
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3.
図書 |
von Wilhelm Becker
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4.
図書 |
by Francesca Matteucci
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5.
図書 |
В. Страйжис
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6.
図書 |
Ken Croswell ; illustrations by Philippe Van
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7.
図書 |
by Harlow Shapley
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8.
図書 |
[by] Merle A. Tuve and Soren Lundsager
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9.
図書 |
by Giorgio Abetti and Margherita Hack ; translated by V. Barocas
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10.
図書 |
edited by Leo Blitz and Peter Teuben
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