Hartough, H.D. Compounds with condensed thiophene rings H.D. Hartough and S.L. Meisel. - New York Interscience Pub. 1954 - xv, 515p.: ill. Contentsv7 The Chemistry of Heterocyclic compounds. Subjects--Topical Terms: Hetrocyclic. Dewey Class. No.: 547.7 / H38C