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Analyses of Iowa coals

Analyses of Iowa coals.

Published Year

• 1920-1929 (1)
• 1940-1949 (1)

Subject

• Coal mines and mining--Iowa (2) *
• Coal--Analysis (2) *

Author

• Fieldner, Arno Carl, (1)
• Osgood, Fred D. (1)
• Rice, George S. (1)

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