1. Beavis, J., 1981. The Determination and Comparison of Amino Acid Compositions of Two Buried Soils and Related Surface Soils. Unpublished MSc Dissertation, University of Reading.
2. Beavis, J., 1985. Amino acids in buried soils. In: Fieller, N.R.J., Gilbertson, D.D., Ralph, N.G.A. (Eds.), Palaeoenvironmental Investigations. British Archaeological Reports, International Series No.258, Oxford.
3. Beavis, J., 1990. The Effects of Land Use Burial on the Amino Acid Composition of Soils. Unpublished PhD Thesis, University of Reading.
4. Effects of land use on the amino acid composition of soils: 1. Manured and unmanured soils from the Broadbalk continuous wheat experiment, Rothamsted, England;Beavis;Geoderma,1996
5. Extraction and desalting amino acids from soils and sediments: evaluation of methods;Cheng;Soil Biology and Biochemistry,1975