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Google圖書搜尋
Stratigraphy and Environmental Sedimentology of Middle Ordovician Black River Group in the Type Area - New York State
Kenneth R. Walker
出版
University of the State of New York, State Education Department
, 1973
URL
http://books.google.com.hk/books?id=mrU9AQAAIAAJ&hl=&source=gbs_api