1. Cicci, R.L. 1978a. A study of the pretended use of objects and graphic-pictorial representation in language impaired and normal preschool children. Unpublished doctoral dissertation. Northwestern University.
2. Cicci, R. L. 1978b. Evaluation of oral language disorders in children.Bulletin of the Orton Society 28: 194–207.
3. Gibson, E. J. and Levin, H. 1975.The Psychology of Reading. Cambridge: M.I.T. Press.
4. Jansky, J. J. 1975. The marginally ready child.Bulletin of the Orton Society 25:69–85.
5. Johnson, D. J. and Hook, P. E. 1978. Reading disabilities: problems in rule acquisition and linguistic awareness.In H. R. Myklebust (ed.).Progress in Learning Disabilities, Vol. IV. New York: Grune and Stratton.