TY  - BOOK
AU  - Ariyasinghe, K.
TI  - Basic Concepts in Chemiccal Calculations
SN  - 9558353027
U1  - 540.07 
PY  - 2002///
CY  - Maharagama
PB  - Vibhawa prakasana
KW  - Chemistry
KW  - Chemical
ER  -