1. The role of topography in controlling throughflow generation
2. and (1972). Hillslope Form and Process, Cambridge, University Press.
3. 4th Series;Cayley,1859
4. (1978). ‘The hillslope hydrological cycle’, in Hillslope Hydrology, (Ed.), Chichester, Wiley, pp. 1–42.
5. and (1960). ‘Geomorphology and forest ecology of a mountain region in the Central Appalachians’, U.S. Geological Survey Professional Paper 347.