Investigation of Perkiomen Creek copper deposits, Montgomery County, Pa.

Author: Earl, Kenneth M.
Year: 1950
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:4666
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 4666
Subject: Copper ores--Pennsylvania--Montgomery County
Link: https://hdl.handle.net/2027/mdp.39015078487686

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