Archaeological Institute of Great Britain and Ireland.
Topographic and Geological Survey Commission of Pennsylvania.
Harris, R. J. C., ed.
Story, William W.
Hatzfeld, E., ed.
Wendel, Friedrich
Thompson, Donald O. & Chimenti, Dale E. eds.
de Schweinitz, G. E.
Halstead, Bruce W.
Singh, S. P. & J.W.H. Burry & B. Watson, eds.
Matschie, Paul, editor.
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