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Revision of U.S. Geological Survey and U.S. Bureau of Mines Coal Resources Classification System: ABSTRACT
Gordon H. Wood, Jr., Thomas M. Kehn,Volume:
63
Year:
1979
Journal:
AAPG Bulletin
DOI:
10.1306/2f9186f8-16ce-11d7-8645000102c1865d
File:
PDF, 105 KB
1979