1. Exchangeable sodium, subplasticity and hydraulic conductivity of some Australian soils
2. Allison, L.E.; Bernstein, L.; Bower, C.A.; Brown, J.W.; Fireman, M.; Hatcher, J.T.; Hayward, H.E.; Pearson, G.A.; Reeve, R.C.; Richards, L.A.; Wilcox, L.V.Diagnosis and improvement of saline and alkali soils. In USDA Agricultural Handbook 60; Richards, L.A., Ed.; Government Printer: Washington, 1954.
3. Sodic soils - New perspectives
4. The Structural Status of Clay Systems