Integrated science in the junior secondary school in Sri Lanka /
A. M. Ranaweera .-
- Paris : Unesco P., 1976.
- 31 p.-
- (Experiments and innovations in education ) (no. 27). .
"A study for the Asian Centre of Educational Innovation for Development."
Includes bibliographical references.
9231013742
--Science - Study and teachinf (Secondary) ---Sri Lanka.