TY  - BOOK
AU  - Williams, D. S. 
AU  - Hewage, Sujatha
AU  - Subasinghe, Kamani
TI  - Chemistry: general chemistry and inorganic chemistry
U1  - 541 
PY  - 1983///
CY  - Nugegoda
PB  - Open University of Sri Lanka
KW  - Physical and Theoritical Chemistry
ER  -