Author: | Deurbrouck, A. W. |
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Year: | 1972 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, |
SUDOC: | I 28.23:7633 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7633 |
Subject: | Coal--Sulfur content--United States |
Links: | https://hdl.handle.net/2027/mdp.39015078526459 |
no.7633-7640 1972 |