Year: | 1959 |
---|---|
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7893 |
Series: | Information circular / United States. Bureau of Mines ; |
Report Number: | 7893 |
Subjects: | Coal-tar |
Coal--Carbonization | |
Tar | |
Link: | https://hdl.handle.net/2027/mdp.39015078454546 |