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Monographs of the United States Geological Survey. Volume XXIII. [Geology of the Green Mountains in Massachusetts, by Raphael Pumpelly, J.E. Wolff, and T. Nelson Dale].

United States. Congress. House

出版	Verlag nicht ermittelbar, 1894
URL	http://books.google.com.hk/books?id=SWc6uwEACAAJ&hl=&source=gbs_api