Author: | Fieldner, Arno Carl |
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Additional Authors: | Selvig, W. A. |
Year: | 1930 |
Document Type: | N/A |
SUDOC: | C 22.12:3055 |
Series: | United States Bureau of Mines Reports |
Report Number: | R. I. 3055 |
Subject: | Coal -- Testing. |
Link: | http://digital.library.unt.edu/ark:/67531/metadc38382/ |