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Carbonizing Properties of Velva Lignite from Ward County, N. Dak., and Monarch Coal from Sheridan County, Wyo
Dewey A. ReynoldsJoseph Dana DavisWilliam Harlan OdeDavid E. WolfsonG. W. Birge
出版U.S. Government Printing Office, 1946
URLhttp://books.google.com.hk/books?id=SyQHxCVXWgEC&hl=&source=gbs_api
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