TY  - BOOK
AU  - Devarajan, C. N.
AU  - Wuvaies, M. M.
TI  - Vanija anka ganithaya 
U1  - 511.8 
PY  - 1963///
CY  - Colombo
PB  - Dep. of Official Languages
KW  - Mathematics
N1  - Text in Sinhala
ER  -