TY  - BOOK
AU  - Samarasinghe, S. I.
AU  - Gunaherath, G. M.
AU  - Chandana, A. K. 
TI  - Organic chemistry. pt.I : aromatic heterocyclic chemistry
U1  - 547.6 
PY  - 1989///
CY  - Nawala
PB  - Open Uniiversity of Sri Lanlka
ER  -