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Surficial Geology and Soils of the Elmira-Williamsport Region, New York and Pennsylvania
Charles Storrow DennyWalter Henry LyfordJohn Campbell Goodlett
出版U.S. Government Printing Office, 1963
URLhttp://books.google.com.hk/books?id=eJbOs7a1VLUC&hl=&source=gbs_api
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