Gupta, R. R. Heterocyclic chemistry Vol:2 Five-membered heterocycles by R. R. Gupta, M. Kumar and V. Gupta - New Delhi Springer India 2009 - x, 638p. ISBN: 9788181282217 Subjects--Topical Terms: Heterocyclic chemistry Dewey Class. No.: 547059 / GUP/H