Author: | Read, D. F. |
---|---|
Year: | 1949 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:4451 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 4451 |
Subjects: | Zinc ores--Pennsylvania--Chester County |
Lead ores--Pennsylvania--Chester County | |
Link: | https://hdl.handle.net/2027/mdp.39015078490953 |