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Geology of the South Wales Coalfield
H. C. Squirrell
其他書名
(explanation of One-inch Geological Sheet 249, New Series). The country around Newport (Mon.)
出版H.M. Stationery Office, 1969
URLhttp://books.google.com.hk/books?id=4GYgygEACAAJ&hl=&source=gbs_api