Bala and Hirnant Limestones at Mynyd Fron Frys in Glyn Ceiriog

• 1 June 1867
• journal article
• other
• Published by Cambridge University Press (CUP) in Geological Magazine
• Vol. 4  (36) , 283-284
• https://doi.org/10.1017/s0016756800208716

Abstract