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- catalog contributor b6554916.
- catalog contributor b6554917.
- catalog created "1956.".
- catalog date "1956".
- catalog date "1956.".
- catalog dateCopyrighted "1956.".
- catalog extent "iii, 52 p. :".
- catalog isPartOf "Information circular (United States. Bureau of Mines) ; 7754.".
- catalog isPartOf "Its Information circular ; 7754".
- catalog issued "1956".
- catalog issued "1956.".
- catalog language "eng".
- catalog publisher "Washington : The Bureau,".
- catalog spatial "United States.".
- catalog subject "Bituminous coal.".
- catalog subject "Coal Economic aspects United States.".
- catalog title "Outlook and research possibilities for bituminous coal / by Bureau of Mines in cooperation with Bituminous Coal Research, Inc.".
- catalog type "text".