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Google圖書搜尋
Preparation Characteristics of Coal from Pike County, Ky
William L. Crentz
James W. Miller
出版
U.S. Department of the Interior, Bureau of Mines
, 1952
URL
http://books.google.com.hk/books?id=Qx3m5HJwz08C&hl=&source=gbs_api
EBook
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