Smith, Margaret S. Growth-regulating properties of dueterated 2,4-Dichlorophenoxyacetic acid / Margaret S. Smith. - Kent : Wye College, [n.d]. - v. : ill. ; 26 cm. - Reprint No. 193 . Includes bibliographical references. Subjects--Topical Terms: Dichlorophenoxyacetic acid-------- Dewey Class. No.: 630.7114223