The Geology of the District between Llanymawddwy and Llanuwchllyn, Merioneth
- 1 April 1929
- journal article
- Published by Geological Society of London in Quarterly Journal of the Geological Society
- Vol. 85 (1-4), 242-306
- https://doi.org/10.1144/gsl.jgs.1929.085.01-04.09