TY  - BOOK
AU  - Stewart, B A.
TI  - Advances in soil science vol.6
SN  - 0387965513
U1  - 631.4/STE 
PY  - 1987///
CY  - New York
PB  - Springer-Verlag
KW  - Soil degradation
KW  - Soil science
ER  -