TY  - BOOK
AU  - Gruijter,J.J.de
TI  - Numerical classification of soils and its application in survey
SN  - 9022006085
PY  - 1977///
CY  - Wageningen
PB  -  Centre for Agricultural Publishing and Documentation 
KW  -  Soils
KW  -  Classification
KW  -  Soil surveys
N1  - 5 sheets of accompanying materials are available at APD bearing the same call number
ER  -