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Annual report of research and technologic work on coal :fiscal year 1951

Annual report of research and technologic work on coal and related investigations :fiscal year 1952

Published Year

• 1950-1959 (2)

Subject

• Coal--Research (2)
• Coal--United States (2) *

Author

• Brown, R. L. (2) *
• Carmann, E. P. (1)
• Ode, W. H. (1)

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