| Author: | Williams, Lloyd |
|---|---|
| Additional Authors: | Gandrud, B. W., Abernethy, R. F., Hershey, Robert E. |
| Year: | 1955 |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | R. I. 5136 |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38625/ |