1. Wildfowl, reservoirs and recreation;Batten;Water Space Amenity Commission Research Report,1977
2. The effects of fishing on waterfowl at Grafham Water;Cooke;Rep. Cambridge Bird Club,1974
3. An assessment of the ecological resources of the area bordering Llandegfedd Reservoir, Gwent;Honca,1981
4. Control of recreational disturbance;Matthews,1982
5. Wildlife conservation—the role of the Nature Conservancy Council;Newbold,1977