TY  - BOOK
AU  - Lal,R.
TI  - Soil erosion in the tropics: principles and management 
SN  - 0070360871 :
AV  - S625.T76.R3 1990
PY  - 1990///
CY  - New York
PB  - McGraw-Hill
KW  - Soil erosion
KW  - Soil conservation
ER  -