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Geology of the Spruce Pine District, Avery, Mitchell and Yancy Counties, North Carolina

Donald Albert Brobst

出版	U.S. Government Printing Office, 1962
URL	http://books.google.com.hk/books?id=FMAPAAAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Prepared in cooperation with the Mineral Resources Division of the North Carolina Department of Conservation and Development.