1. The Role of Nitrogen in Grassland Productivity. Bulletin 48 Commonwealth Bureau of Pastures and Field Crops, Commonwealth Agricultural Bureau, Farnham Royal, 1970, p. 202.
2. Influence of soil and sward characteristics on the response to nitrogen. Proceedings of International Meeting on Animal Production from Temperate Grassland Dublin, 1977, pp. 45–49.
3. ; ; The response of perennial ryegrass to fertiliser nitrogen in relation to climate and soil. Grassland Research Institute Technical Report No. 27 Hurley, 1980.
4. Leys and soil organic matter: II. The accumulation of nitrogen in soils under different leys
5. The flow of nitrogen in grassland. The Fertiliser Society Proceedings No. 229, 1984.