1. 1963. The Geology of the Llangranog district, southwest Cardiganshire. Unpublished PhD. thesis. The Queen's University of Belfast.
2. , and 1981. The geology of the Cardigan Bay–St George's Channel Basin. In: and (Eds), Petroleum Geology of the Continental Shelf of North-West Europe. Heyden and Son Ltd, London, 432–443.
3. 1969. Some of the major structures of early Palaeozoic age in Wales and the Welsh Borderland: an historical essay. In: (Ed.), The Precambrian and Lower Palaeozoic rocks of Wales. University of Wales Press, Cardiff, 67–116.
4. 1984. Petroleum geology of the central Broome Platform. In: Purcell, P. G. (Ed.), The Canning Basin, W.A.: Proceedings of Geol. Soc. Aust. Pet. Expl. Soc. Aust. Symposium, Perth, 1984.
5. Regional variations in cleavage and fold development in North Wales