Chapter 2: Parent-Professional Interactions, A. Turnbull in Systemic Instruction of the Moderately and Severely Handicapped, Second Edition, Snell, 1978

Chapter 2: Parent-Professional Interactions, A. Turnbull in Systemic Instruction of the Moderately and Severely Handicapped, Second Edition, Snell, 1978, Box: 1, Folder: 70. Personal papers of Rud Turnbull, PP 511. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/304823 Accessed December 25, 2025.