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Google圖書搜尋
Generalized Section of Coal Bearing Rocks of Ohio
Geological Survey of Ohio
Myron Thomas Sturgeon
Raymond Ellwood Lamborn
Wilber Stout
William Meredith Merrill
其他書名
1938-49
出版
Geological Survey of Ohio
, 1939
URL
http://books.google.com.hk/books?id=uhYZc1EUw2UC&hl=&source=gbs_api