1. Marine to freshwater: the sedimentology of the interrupted environmental transition (Ludlow—Siegenien) in the Anglo-Welsh region;Allen;Philosophical Transactions of the Royal Society, London,1985
2. Geology of the South Wales Coalfield, Part V, The Country Around Merthyr Tydfil;Barclay,1988
3. Geology of the South Wales Coalfield. Part II, The Country Around Abergavenny;Barclay,1989
4. Geology of the Talgarth District—A Brief Explanation of the Geological Map;Barclay,2003
5. Geology of the Brecon District—A Brief Explanation of the Geological Map;Barclay,2005