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Coal mines of Colorado : statistical data
Jones, David C.
Murray, D. Keith.
Colorado Geological Survey.
1976
Colorado Geological Survey, Dept. of Natural Resources, State of Colorado
Denver, Colo.
Coal mines and mining
Colorado
Statistics
1 online resource (ii, 27 p.).
eng
Information series (Colorado Geological Survey)
NR7.10/2/INTERNET
http://hdl.handle.net/10176/co:10872
796042010
2012-07-13T23:50:44.289Z