TY  - BOOK
AU  - Brook,Robert M.
AU  - Humphrey,Bill
ED  - Papua New Guinea.
ED  - Papua New Guinea.
TI  - Sustainable agriculture: a review of research in Papua New Guinea up to 1989 
PY  - 1992///
CY  - [Kerevat]
PB  - Lowlands Agricultural Experiment Station
KW  - Sustainable agriculture
KW  - Papua New Guinea
KW  - Research
ER  -