TY  - GEN
AU  - Selvaratnam ,  M.
AU  - Canagaratna , S.G.
AU  -  Fernando , J.N.O. 
AU  -  Perera , J.H.S.O.
TI  - Chemistry physical chemistry part I and II block 2
U1  - 541.3 
PY  - 1984///
CY  - Nugegoda
PB  - Open University
KW  - Chemistry
KW  - Physical Chemistry
ER  -