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Technology and use of lignite proceedings : Bureau of Mines-University of North Dakota Symposium, Grand Forks, N. Dak., April 1961

Technology and use of lignite :proceedings : Bureau of Mines-University of North Dakota Symposium, Grand Forks, N. Dak., April -May 1963

Technology and use of lignite :proceedings: Bureau of Mines - University of North Dakota Symposium, Bismarck, N. Dak., May 12-13, 1971

Published Year

• 1960-1969 (2)
• 1970-1979 (1)

Subject

• Lignite--Congresses (3) *

Author

• Elder, James L. (3) *
• Kube, Wayne R. (3)

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