Stratigraphy of the Silurian and Old Red Sandstone of the Cennen Valley and adjacent areas, south-east Dyfed, Wales /
H. C. Squirrell and D. E. White.
- London: Her Majesty's Stationery Office, 1978.
- ii, 45 p. : ill., maps, tables ; 30 cm. +2 maps.
- Institute of Geological Sciences : Natural Environment Research Council. 78/6 .
Conduct map 1: geological map of the Silurian of the Cennen Valley and adjacent areas. Conduct map 2: geological map of the Old Red Sandstone of the Cennen Valley and adjacent areas.