TY  - BOOK
AU  - Ramasamy, R
AU  - Abeywickrama, B. A.
AU  - Breckenridge, W
AU  - Watson, M
TI  - Journal of the national science council of Sri Lanka: September1994
T2  - Journal of the national science council of Sri Lanka, September 1994
U1  - B0416 
CY  - Colombo
PB  - NARESA
ER  -