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Study of preheating Colorado oil shale

Design of underground mine openings oil-shale mine, Rifle, Colo.

Published Year

• 1950-1959 (2) *

Subject

• Oil-shale industry (2) *
• Oil-shales--Colorado (2) *
• Mining engineering (1)

Author

• Hubbard, Arnold B. (1)
• Merrill, Robert H. (1)
• Robinson, W. E. (1)

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