TY  - GEN
AU  - Gupta, R. R.
AU  - Kumar, M.   
AU  - Gupta, V. 
TI  - Heterocyclic Chemistry Vol. II: Five-Membered Hetero-cycles 
SN  - 9788181282216
U1  - 547.59 
PY  - 1999///
CY  - New Delhi
PB  - Springer (India) Pvt. Ltd.
ER  -