C.B.T.A. is a group that publishes materials concerning intervention for autism, and that provides training, clinical and consulting services as well as expertise in information management for educational and clinical settings. Information about purchasing the I.G.S. Curriculum and related materials and services may be obtained directly from the publisher: C.B.T.A., Suite 5, 3 Tioga Blvd., Apalachin, N.Y. 13732