TY  - BOOK
AU  - Webster,R.
TI  - Quantitative and numerical methods in soil classification and survey
T2  - Monographs and soil survey
SN  - 0198545126
PY  - 1977///
CY  - Oxford
PB  - Clarendon Press
KW  - Soil-surveys
KW  - Statistical methods
KW  - Soils
KW  - Classification
ER  -