TY  - GEN
AU  - De Silva,  E. Dilip
AU  - De Silva,  E. Dilip 
TI  - Organic chemistry  part  IV : conjugated systems and chemistry of carbonyl compounds 
U1  - 547.7 
PY  - 1997///
CY  - Nugegoda
PB  - Open University
KW  - CHEMISTRY
KW  - ORGANIC CHEMISTRY
ER  -