Gupta, R. K. Encyclopedia of chemistry - Delhi: Cyber Tech Publications, 2003. - 842 p. ; ill. : 23 cm. Vol. I , Vol. II & Vol. III It includes bibliographic information and index ISBN: 9788178840857 Subjects--Topical Terms: ChemistryChemistry--Encyclopeadia Dewey Class. No.: 540.76 / GUP