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Title
Author
Publisher
Subject
Language
Date
Title
On the contents of a rock retreat in south eastern Pennsylvania
Author
Haldeman,S.S
Date
1881
Publisher
American Philosophical Society (Trans.XV,pp.351-368)
Subject
Prehistory USA
Number
AF/647 in Fire SAFE
Type
Article
Web
https://www.biodiversitylibrary.org/item/173346#page/381