Author: | Andrews, David A. |
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Year: | 1948 |
Document Type: | N/A |
SUDOC: | I 28.7:700 |
Series: | Technical paper (United States. Bureau of Mines) |
Report Number: | Technical Paper 700 |
Subjects: | Coal -- Analysis. |
Coal -- United States. | |
Link: | http://digital.library.unt.edu/ark:/67531/metadc66471/ |