1. Seeds of Destruction? Non-native Wildflower Seed and British Floral Diversity;Ackeroyd,1994
2. Botanical Monitoring of Grassland in the Broads ESA, 1987–1994,1996
3. Botanical Monitoring of Grassland in the Pennine Dales ESA, 1987–1995,1996
4. Botanical Monitoring of Grassland in the Somerset Levels and Moors ESA 1988–1995,1996
5. Botanical Monitoring of Grassland in the South Downs ESA 1987–1995,1996