Rock-Strata Gases of the Cripple Creek District, Colorado and Their Effect on Mining

Author:	Denny, E. H.
Additional Authors:	Marshall, K. L., Emery, A. H., Yant, W. P., Fieldner, A. C.
Year:	1930
Document Type:	N/A
Series:	United States Bureau of Mines Reports
Report Number:	Bulletin 317
Link:	https://digital.library.unt.edu/ark:/67531/metadc12488/