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Google圖書搜尋
Ultrastructural Studies on Graptolites, 1: the Perederm and Its Derivatives in the Dendroidea and in Mastigograptus
Adam Urbanek
Kenneth M. Towe
出版
Smithsonian Institution Press
, 1974
URL
http://books.google.com.hk/books?id=IRpdzwEACAAJ&hl=&source=gbs_api