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Title | OFD Ogof Ffynnon Ddu - S1068 |
Author | O'Reilly,P.M |
Date | 1973 |
Subject | OFD Ogof Ffynnon Ddu |
Notes | Historical Survey - Limestone Outcrops of the South Wales Coalfield, the Ogof Ffynnon Ddu Karst, and a Longitudinal Section of OFD |
Language | English |
Number | S1068 |
Type | Survey |