1. Modal analysis of soils;Anderson,1961
2. Statistical methods in soil classification;Arkley,1968
3. Cyclic variations and the pedon;Arnold,1964
4. Differentiation of soils having cyclic or recurring horizons;Arnold;Can. J. Soil Sci.,1966
5. Lateral changes in soil variability;Beckett;J. Australian Inst. Agr. Sci.,1967