TY  - GEN
AU  - Tantrigoda , Ramani U.
AU  - Iqbai , Sitty
TI  - Chemistry part ll: bonding in chemistry 
SN  - 9552306035
U1  - 540.1 
PY  - 1995///
CY  - Nugegoda
PB  - Open University
KW  - Chemistry
ER  -