1. Sedimentation and palaeogeography of the Old Red Sandstone of Anglesey, North Wales;Allen;Proc. Yorks. geol. Soc.,1965
2. The Devonian rocks of Wales and the Welsh Borderland;Allen,1974
3. An occurrence of dish structures in Caradoc turbidites, Poppit Sands, near Cardigan, Dyfed, Wales;Allen;Proc. Geol. Ass.,1981
4. Old Red Sandstone facies and Wenlock stratigraphy and palaeogeography in Wales and the Welsh Borderland;Allen;Proc. Geol. Ass.,1979
5. Lower Palaeozoic volcanic rocks of Wales;Allen,1982