British regional geology : South Wales /
J. Pringle and T. Nev ille George.
- 2nd ed.
- London : H. M. Stationery Office, 1948.
- vi, 100 p. : ill., viii plates, incl. fold map, diagrs. ; 25 c m.
At head of title: Department of scientific and Industrial research. Geological Survey and Museum. " List of references at end of most chapters, "Maps and publications dealing with South Wales: p. 99-100.