Author: | Good, John E. |
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Additional Authors: | Abreu, Alvaro |
Year: | 1949 |
Document Type: | N/A |
SUDOC: | I 28.7:713 |
Series: | Technical paper (United States. Bureau of Mines) |
Report Number: | Technical Paper 713 |
Subject: | Coal -- Brazil. |
Link: | http://digital.library.unt.edu/ark:/67531/metadc66473/ |