返回Google圖書搜尋

Eocene Deposits of the Middle Atlantic Slope in Delaware, Maryland, and Virginia, by William Bullock Clark. [U.S. Geological Survey Bulletin No. 141.].

United States. Congress. House

出版	Verlag nicht ermittelbar, 1897
URL	http://books.google.com.hk/books?id=-ytIuwEACAAJ&hl=&source=gbs_api