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Coal Resources of the United States
Paul AverittLouise R. BerryhillDorothy A. Taylor
其他書名
(a Progress Report, October 1, 1953)
出版United States Department of the Interior, Geological Survey, 1953
URLhttp://books.google.com.hk/books?id=7PoQvwEACAAJ&hl=&source=gbs_api