Dutta, P.K.. Elements of Intermediate Chemistry: Inorganic and Organic / Textual Documents P.K.Dutta & P.K.Dutta. - Rev.ed. / - Calcutta : Scientific Book Agency , 1976. - 116p. : ill ; 22cm . Subjects--Index Terms: Chemistry G-Chemistry Dewey Class. No.: 540 / D 954 El