TY  - BOOK
AU  - Ranaweera, A.M.
TI  - Integrated scoence in the junior secondary school in Sri Lanka 
SN  - 9231013742
U1  - 370.78 
PY  - 1976///
CY  - Paris
PB  - Unesco
KW  - Education
KW  - Mahinda Ranaweera Collection
ER  -