TY  - BK
AU  - Follet,R.F.
AU  - Stewart,B.A.
TI  - Soil erosion and crop productivity
SN  - 0-89118-087-7
U1  - 631.45 
PY  - 1985///
CY  - Madison, WI (USA)
PB  - American Society of Agronomy, 
KW  - Erosion
KW  - Natural resources
KW  - Productivity
KW  - AGROVOC
KW  - Soil conservation
KW  - Soil deterioration
ER  -