1. The Structure of the Taff Gorge area, Glamorgan, and the stratigraphy of the Old Red Sandstone-Carboniferous Limestone transition;Gayer;Geol. J.,1973
2. The Carboniferous Limestone Series in the west of the Vale of Glamorgan;George;Q.J. geol. Soc. Lond.,1932
3. The relations between folds and late-formed joints in South Pembrokeshire;Hancock;Geol. Mag.,1964
4. Joints and Faults: the morphological aspects of their Origins;Hancock;Proc. Geol. Ass.,1968
5. Regional study of Jointing in Comb Ridge-Navajo Mountain Area, Arizona and Utah;Hodgson;Bull. Am. Ass. Petrol. Geol.,1961