TY  - GEN
AU  - Guneratne , R.D.
AU  - Bandarage , G . 
TI  - Spectroscopic methods: CHU 3129 instrumental methods of  chemcal analysis unit 1
U1  - 543.0858 
PY  - 2002///
CY  - Nugegoda
PB  - Open University
KW  - Chemistry
ER  -