TY  - GEN
AU  - Thenabadu , Mervyan.W
TI  - Science ducation series: use of fertilizers and manures in Sri Lanka
U1  - 631.8 
PY  - 1980///
CY  - National Science council of Sri Lanka
PB  - Colombo
KW  - AGRICULTUCER
KW  - FERTILIZER
ER  -