TY  - BOOK
TI  - Diseases of oil palm, rubber and cocoa in North Sumatra
T2  - Strengthening research on rubber and oil palm in North Sumatra 17
U1  - NR:63(035) 
PY  - 1973///
CY  - Medan
PB  - FAO
KW  - Oil palm disease
KW  - Rubber diseases
ER  -