1. The A.D.D. Book, by William Sears, M.D., and Lynda Thompson, Ph.D., Little Brown, 1998.
2. The A.D.D. CENTRE, Toronto, Canada; www.ADDcentre.com
3. C.H.A.D.D. (Children and Adults with Attention Deficit Disorder); 8181 Professional Place, Suite 201, Landover, MD 20785; phone: 301-306-7070; fax: 301-306-7090; 800-233-4050 (U.S. only); www.chadd.org