TY  - BOOK
AU  - Scherr,Sara J
TI  - Soil degradation : a threat to developing country food security by 2020
SN  - 0896296318
U1  - 628.55 
PY  - 1999///
CY  - Washington
PB  - International Food Policy Research Institute
KW  - Policy
KW  - Research priorites
ER  -