Hoffman, Ronald L. The natural approach to attention deficit disorder (ADD) : drug-free ways to treat the roots of this childhood epidemic / Attention deficit disorder Ronald L. Hoffman. - New Canaan, Conn. : Keats Pub., c1997. - 48 p. ; Includes bibliographical references (p. 47-48). ISBN: 0879837799 Subjects--Topical Terms: Attention-deficit hyperactivity disorder.Attention-deficit hyperactivity disorder Dewey Class. No.: 618.92 / HOF