TY  - BOOK
AU  - Cheng, H.H
TI  - Pestieides in the soil environment: processes impacts and modelling wisconsin,Madison, soil science society of America
U1  - 628.55 C33P 
PY  - 1990///
KW  - SOIL POLLUTION
KW  - PESTICIDES - - INVIROMENT ASPECTS
KW  - SOIL - - PESTICIDE CONTENT
ER  -