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Centennial Celebration of the United States Coast and Geodetic Survey, April 5 and 6, 1916, Washington, D.C.
U.S. Coast and Geodetic Survey
出版U.S. Government Printing Office, 1916
URLhttp://books.google.com.hk/books?id=fy05-Wx_1uoC&hl=&source=gbs_api
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