1. Influence of long-term soil fertility treatments on weed species in winter wheat;Banks;Agron. J.,1976
2. The changing philosphy of soil test interpretations;Barber,1973
3. Soil variability: a review;Beckett;Soils and Fertilizers,1971
4. Classification of the soil series of Hawaii in four system: a guide to correlating tropical soils;Beinroth;Hawaii Agricultural Experiment Station College of Tropical Agriculture and Human Resources, University of Hawaii Miscellaneous Publication 166,1979
5. Phosphate retention in different soil taxonomic classes;Burnham;Soil Sci.,1982