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Annual Report of Research and Technologic Work on Coal
Arno Carl FieldnerRalph Emmet Brewer
其他書名
Fiscal Year 1939
出版U.S. Department of the Interior, Bureau of Mines, 1940
URLhttp://books.google.com.hk/books?id=dxu12VRIHXoC&hl=&source=gbs_api
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