1. Methods for Chemical Analysis of Soils;Blakemore;N.Z. Soil Bur. Sci. Rep.,1987
2. Present status of freezing techniques;Bullivant,1970
3. Report on the principles of rheological nomenclature. Joint Committee on Rheology of the International Council of Scientific Unions;Burgers,1948
4. Notes on the visit by Messrs. Western, Robinson and Dr Northey in November 1972. Ministry of Works. New Plymouth Residency;Campbell,1972
5. Minerals in soil environments;Dixon,1977