TY  - SER
AU  - Archer,A.A.
TI  - Geology of the South Wales Coalfield - The Upper Carboniferous and later formations of the Gwendraeth Valley and Adjoining Areas in parts of the Carmarthen (229), Ammanford (230) and Worms Head (246) sheets
PY  - 1968///
CY  - London
PB  - Geological Survey of Great Britain
KW  - Issue
ER  -