British regional geology: The Welsh borderland - Pocock, R. W. (Roy Woodhouse), 1887-; Whitehead, T. H. (Talbot Haes), 1890-; Geological Survey of Great Britain; Museum of Practical Geology (Great Britain) (London, H. M. Stationery Off., 1935)
At head of title: Department of Scientific and Industrial Research. Geological Survey and Museum.
"Maps, publications, etc., dialing with the district": p. 82-84.
Keywords: Geology -- Wales