Find (PDF) Historical Sketches Of Copper And Lead Mining In Montgomery County Pennsylvania for Read Full

Language: en
Pages:

Authors: F. Harold Evans

Categories: Copper mines and mining

Type: BOOK - Published: - Publisher:

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Language: en
Pages: 42

Authors: F. Harold Evans

Categories: Copper mines and mining

Type: BOOK - Published: 1980 - Publisher:

Language: en
Pages: 484

Authors:

Categories: Montgomery County (Pa.)

Type: BOOK - Published: 1905 - Publisher:

Language: en
Pages: 240

Authors: J. Peter Lesley

Categories: Geology

Type: BOOK - Published: 1876 - Publisher:

Language: en
Pages: 482

Authors: Richard A. Sheppard

Categories: Geology

Type: BOOK - Published: 1983 - Publisher: