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The Geology of the South Wales Coal-field
Sir Aubrey Strahan
其他書名
The country around Swansea, being an account of the region comprised in Sheet 247 of the map
出版H.M. Stationery Office, 1907
URLhttp://books.google.com.hk/books?id=0E8dngEACAAJ&hl=&source=gbs_api