Minerals in the economy of Pennsylvania.

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Related Names
Pennsylvania. Department of Environmental Resources.
United States. Bureau of Mines.
Language(s)
English
Published
[Washington] : Bureau of Mines, U.S. Dept. of the Interior.
Subjects
Mines and mineral resources > Pennsylvania > Periodicals.
Mineral industries > Pennsylvania > Periodicals.
Note
Vols. for 1978- prepared in cooperation with Pennsylvania Dept. of Environmental Resources.
Physical Description
v. ill. 27 cm.
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Item Link Original Source
Full view   1978-79 University of Michigan