TY  - BOOK
ED  - Papua New Guinea.
TI  - Ecology: science teachers guide, grade 9, unit 7 
PY  - 1981///
CY  - Port Moresby
PB  - The Dept.
KW  - Ecology
KW  - Study and teaching (Secondary)
KW  - Papua New Guinea
KW  - Outlines, syllabi, etc
ER  -