1. Petrology, origin, and deposition of the highest Lower Old Red Sandstone of Shropshire, England;Allen;J. Sediment. Petrol.,1962
2. Intraformational conglomerates and scoured surfaces in the Lower Old Red Sandstone of the Anglo-Welsh Cuvette;Allen;Geol. J.,1962
3. Depositional features of Dittonian rocks: Pembrokeshire compared with the Welsh Borderland;Allen;Geol. Mag.,1963
4. Sedimentation and palaeogeography of the Old Red Sandstone of Anglesey, North Wales;Allen,1965
5. Studies in fluviatile sedimentation: implications of pedogenic carbonate units, Lower Old Red Sandstone, Anglo-Welsh outcrop;Allen;Geol. J.,1974