TY - BOOK AU - Hartough,H.D.(Howard Dale),1913- TI - Thiophene and its derivatives T2 - The Chemistry of heterocyclic compounds AV - QD403 .H35 U1 - 547.6547.2* PY - 1952/// CY - New York PB - Interscience Publishers KW - Thiophene N1 - Bibliographical footnotes; Includes bibliographies ER -