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1
Published 1827
Subjects and Genres: ';
“...Anthracite coal Pennsylvania....”
Record Source:
Published Materials
Book
2
Published 1941
Subjects and Genres: ';
“...Anthracite coal Pennsylvania....”
Record Source:
Published Materials
Book
3
Published 1869
Subjects and Genres: ';
“...Coal Pennsylvania Geology....”
Record Source:
Published Materials
Book