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Development of Astronomy in the United States
Truman Henry Safford
其他書名
A Discourse Read June 25, 1888 to Commemoration of the Fiftieth Anniversary of the Dedication of the Hopkins Observatory of Williams College
出版Williams College, 1888
URLhttp://books.google.com.hk/books?id=eikyAQAAMAAJ&hl=&source=gbs_api
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