Webster, R
Quantitative and numerical methods in soil classification and survey - Oxford, Clarendon press 1977 - 269
0198545126
Soil surveys- statitical methods/ soils- classification- statistical methods/ soil biology
631.47 WEB
100
Quantitative and numerical methods in soil classification and survey - Oxford, Clarendon press 1977 - 269
0198545126
Soil surveys- statitical methods/ soils- classification- statistical methods/ soil biology
631.47 WEB
100