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Chemical Analyses of Coal from the Healy, Kenai, Seldovia, and Utukok River 1:250,000 Quadrangles, Alaska

Ronald H. AffolterFrederick Otto SimonGary D. Stricker

出版	U.S. Geological Survey, 1981
URL	http://books.google.com.hk/books?id=3cm2SgAACAAJ&hl=&source=gbs_api