00470nam a22001817a 4500 8181282205 547.69 GUP Gupta,R.R 486 Heterocyclic Chemistry Vol.1 India Springer 2005 422 Principles ,Three-and Four Membered Heterocycles with 98 Figure and 34 Tables chemistry heterocycle 487 Kumar,M 488 Gupta,V 490 BK 179 179 0 0 0 NFIC IC IC GEN 2015-02-22 20 547.69 GUP 005861 2026-01-26 13:15:47 2026-01-13 2015-02-22 BK