TY  - BOOK
AU  - Allen, H. S.
AU  - Moore, H.
AU  - Arulnanthi, K. S.
TI  - A textbook of practical physics : Ceymurai ppoutikaiyal nul
U1  - 530 
PY  - 1963///
CY  - Colombo
PB  - Department of Official Languages
ER  -