| Author: | Barton, William R. |
|---|---|
| Year: | 1968 |
| Document Type: | N/A |
| SUDOC: | I 28.27:8391 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | I. C. 8391 |
| Subjects: | Building materials industry -- United States. |
| Building stones -- United States. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc170799/ |