Gallender, D. (1980). Symbol communication for the severely handicapped: Sign language for classroom programming and management. Thomas.
Chicago-Zitierstil (17. Ausg.)Gallender, Demos. Symbol Communication for the Severely Handicapped: Sign Language for Classroom Programming and Management. Springfield, Ill: Thomas, 1980.
MLA-Zitierstil (9. Ausg.)Gallender, Demos. Symbol Communication for the Severely Handicapped: Sign Language for Classroom Programming and Management. Thomas, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.