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Report of the Geological Exploration of the Fortieth Parallel Made by Order of the Secretary of War According to Acts of Congress of March 2, 1867, and March 3, 1869
Hague (Arnold)Emmons (Samuel Franklin)
其他書名
2: Descriptive geology
出版U.S. Government Printing Office, 1877
URLhttp://books.google.com.hk/books?id=RInPX5FPRLIC&hl=&source=gbs_api
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