Author: | Ashley, George H. |
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Additional Authors: | Toenges, Albert L., Cooper, H. M., Abernethy, R. F., Tarpley, E. C., McElroy, G. E., Snyder, N. H., Siclen, M. Van, Buch, J. W. |
Year: | 1944 |
Document Type: | N/A |
SUDOC: | I 28.7:659 |
Series: | Technical paper (United States. Bureau of Mines) |
Report Number: | Technical Paper 659 |
Subject: | Anthracite coal -- Pennsylvania. |
Link: | http://digital.library.unt.edu/ark:/67531/metadc66459/ |