Author: | Hubbard, C. R. |
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Additional Authors: | Roby, Robert N., Henkes, W. C. |
Year: | 1964 |
Document Type: | N/A |
SUDOC: | I 28.27:8229 |
Series: | Information circular (United States. Bureau of Mines) |
Report Number: | I. C. 8229 |
Link: | http://digital.library.unt.edu/ark:/67531/metadc67127/ |