1.

図書
図書
1. The elements of the four inner planets and the fundamental constants of astronomy
by Simon Newcomb
出版情報: Washington : Goverment Printing Office, 1895.
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2.

図書
図書
2. Astronomy for high schools and colleges. 6th ed., rev
by Simon Newcomb and Edward S. Holden
出版情報: New York : Henry Holt and Co., 1893, c1879
シリーズ名: American science series ; Advanced course
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