TY  - BOOK
ED  -  Food and Agriculture Organisation of the United Nations.
TI  -  The soil : : how to improve the soil
SN  -  9251001456
PY  - 1976///
CY  -  Rome : 
PB  -  FAO, 
KW  -  Soil  productivity
KW  -  Soil management
KW  -  Soil conservation
KW  -  Soils
ER  -