TY  - GEN
AU  - Selvararthnam , M.
AU  - Canagarathne , S.G.
AU  - Fernando , J.N.O.
AU  - Perera , J.H.S.Q. 
AU  - Roberts , Godwin
TI  - Chemistry physical chemistry parts 1 and II block 2
U1  - 541.3 
PY  - 1984///
CY  - Nugegoda
PB  - Open University
KW  - Chemistry
ER  -