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

Oil-Shale mine, Rifle, Colo. :a review of design factors

Published Year

• 1950-1959 (2) *

Subject

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

Author

• Merrill, Robert H. (2) *
• Obert, Leonard, (1)

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