TY  - GEN
TI  - FAO fertilizer yearbook
U1  - 631.33025 
PY  - 1983///
PY  - 0000///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  -   Agriculture
KW  -   Fertilizers and manures
N1  -   Vol-32 & 33
ER  -