British regional geology: The Welsh borderland,
by R. W. Pocock and T. H. Whitehead.
- London, H. M. Stationery Off., 1935.
- v, 84 p. incl. illus., maps, diagrs. xi pl. (incl. fold. map) 25 cm.
At head of title: Department of Scientific and Industrial Research. Geological Survey and Museum.
"Maps, publications, etc., dialing with the district": p. 82-84.