| Author: | Crocker, L. |
|---|---|
| Additional Authors: | May, J. T., Seidel, D. C., Davidson, C. F., Lien, R. H., Edlund, V. E., Witkowsky, D. S., Cologer, P. C. |
| Year: | |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 691 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc12832/ |