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Geology and Mineral Resources of the Honeybrook and Phoenixville Quadrangles, Pennsylvania. By F. Bascom and G.W. Stose. [With a Map.].

Florence BascomF. BascomGeorge Willis StoseGeological survey (Etats-Unis)

出版	U.S. Government Printing Office, 1938
URL	http://books.google.com.hk/books?id=51TutgAACAAJ&hl=&source=gbs_api