Williams, R. J. B. 1976. The chemical composition of rain, land drainage, and borehole water from Rothamsted, Broom's barn, Saxmundham, and Woburn Experimental Stations. Technical Bulletin Ministry of Agriculture Fisheries and Food. 32, pp. 174-200.
Williams, R. J. B. 1975. The influence of soil type and manuring on measurements of physical properties and nutrient status of some British soils. Technical Bulletin Ministry of Agriculture Fisheries and Food. 29, pp. 324-343.
Green, R. D. and Fordham, S. J. 1975. A field method for determining air permeability in soil. Technical Bulletin Ministry of Agriculture Fisheries and Food. 29, pp. 273-290.
Mackney, D. 1974. Land use capability classification in the United Kingdom. Technical Bulletin Ministry of Agriculture Fisheries and Food. 30, pp. 4-12.
Gasser, J. K. R. 1971. Nature and value of residual fertilizer nitrogen in soils. Technical Bulletin Ministry of Agriculture Fisheries and Food. 20, pp. 114-124.
Warren, R. G. and Johnston, A. E. 1965. Notes on the use of soil analysis for estimating available P in Rothamsted soils. Technical Bulletin Ministry of Agriculture Fisheries and Food. 13, pp. 30-37.
Gasser, J. K. R. 1961. Determination of the nitrogen requirements of crops by analysis 1 Laboratory method of measuring soil nitrogen status and methods of correlating measurements with crop performance. Technical Bulletin Ministry of Agriculture Fisheries and Food. 15.