Inundated Anthracite Reserves: Eastern Middle Field of Pennsylvania

Author:	Ash, S. H. (Simon Harry), b. 1889
Additional Authors:	Davies, B. S., Fatzinger, R. W., Kynor, H. D.
Year:	1950
Document Type:	N/A
Series:	United States Bureau of Mines Reports
Report Number:	Bulletin 491
Link:	https://digital.library.unt.edu/ark:/67531/metadc12650/