Geology of the South Wales coalfield special momoir ; 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
A. A. Archer M. A Calver
London H.M.S.O 1968
Localização: IGC - Instituto de Geociências (554.2 A671g )(Acessar)