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Observations on the Structure of Fossil Plants Found in the Carboniferous Strata

其他書名	Part 3: Lepidodendron
出版	Palaeontographical society, 1872
URL	http://books.google.com.hk/books?id=DnyTMIdyVPYC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN