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Results of Magnetic Observations Made by the United States Coast and Geodetic Survey Between July 1, 1911, and December 31, 1912
Robert Lee Faris
出版
U.S. Government Printing Office
, 1913
URL
http://books.google.com.hk/books?id=7MtDOWT_93gC&hl=&source=gbs_api
EBook
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