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The Geology of the South Wales Coal-field
Sir Aubrey StrahanRichard Hill TiddemanWalcot Gibson
其他書名
The country around Pontypridd and Maes-Têg, being an account of the region comprised in sheet 248 of the map
出版H.M. Stationery Office, 1903
URLhttp://books.google.com.hk/books?id=tzfNo9TMkPkC&hl=&source=gbs_api