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The Silurian System, Founded on Geological Researches in the Counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth, Gloucester, Worcester, and Stafford
其他書名
With Descriptions of the Coalfields and Overlying Formations
出版John Murray, Albemarle Street, 1839
URLhttp://books.google.com.hk/books?id=A7sQAAAAIAAJ&hl=&source=gbs_api
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