| U.S. Bureau of Mines Publications, Alaska | |
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U.S. Bureau of Mines Information Circular 8301 |
| Title: | Forms of Sulfur in U.S. Coals | |
| Author: | F.E. Walker and F.E. Hartner | |
| Year: | 1966 | |
| Pages: | 51 pp. (Alaska: pp. 6-7) | |
| Availability: | Contact librarian for availability |
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