TY  - BOOK
AU  - Gupta, R. R.
AU  - M. Kumar
TI  - Heterocyclic chemistry
SN  - 81-8128-220-5
U1  - 547.59 
PY  - 1998///
CY  - New York
PB  - Springer
KW  - Chemistry, Heterocyclic
KW  - Chemistry, Organic
KW  - Cyctic compounds
N1  - V.1. Principles, three-and four membered heterocycles
ER  -