1. Grafham Water Bird Report. April 1972–March 1973;Cooke;Beds. & Hunts. Naturalists' Trust News Letter,1973
2. The effects of fishing on waterfowl at Grafham Water;Cooke;Cambridge Bird Club Report 1974,1976
3. The Sevenoaks gravel pit reserve;Harrison,1974
4. The reservoirs and other large waters;Homes,1957
5. Reactions of goldeneyes to boating;Hume;Br. Birds,1976