British regional geology : the Welsh borderland - Pocock, Roy Woodhouse, 1887-; Whitehead, Talbot Haes, 1890- (London : H. M. Stationery Office, 1948)
A head of title: Department of scientific and Industrial Research. G eological Survey and Museum
" Maps, publications, etc, dealing with the district" p. 81-83
Keywords: Geology -- Wales; Great Britain. -- Geological Survey; London -- Museum of Practical Geology