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Google圖書搜尋
Late Devonian Events Around the Old Red Continent
Martinus Johannes Maria Bless
Maurice Streel
出版
Ministry of Economic Affairs, Adm. of Mines, Belgian Geological Survey
, 1986
URL
http://books.google.com.hk/books?id=9y9HHAAACAAJ&hl=&source=gbs_api