TY  - GEN
AU  - Thanthirigoda, R.U.
AU  - Iqbal, S.
TI  - Chemistry (Tamil): chemical bonding 
SN  - 9552306031
U1  - 540 
PY  - 1995///
CY  - Nugegoda
PB  - Opean University
KW  - CHEMISTRY
ER  -