| Author: | Polack, Samuel P. |
|---|---|
| Additional Authors: | Smith, Allan F. |
| Year: | 1961 |
| Document Type: | N/A |
| SUDOC: | I 28.27:8043 |
| Series: | Information circular (United States. Bureau of Mines) |
| Report Number: | I. C. 8043 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc67109/ |