Minerals in the economy of Pennsylvania.
Corporate Authors: | , |
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Format: | Government Document Serial |
Language: | English |
Published: |
Washington :
Bureau of Mines, U.S. Dept. of the Interior,
[1978]-
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Series: | State mineral profiles.
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Subjects: | |
Available Online: |
Evans: US Documents Microfiche (3rd floor)
Call Number: |
I 28.37/4:37 |
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