ChristensenD. H.Some adjustments and changes in the course of the study and school organization suggested by the needs and capacities of children that vary from the standard set for average pupils. Journal of Proceedings and Addresses of the National Education Association of the United States. Secretary's Office, Ann Arbor, Michigan: 1912, 355–358.
2.
CruickshankW. M.Planning for the severely retarded child. Amer. J. ment. Def., July, 1956, 61, 3–9.
3.
CruickshankW. M.Current educational practices with exceptional children. Chapter 2 in: CruickshankW. M. and JohnsonG. O., Education of exceptional children and youth. Englewood Cliffs, N. J.: Prentice-Hall, 1958, p. 46.
4.
DunnL. M. & HottelJ. V.The effectiveness of special day class training programs for severely mentally retarded (trainable) children. George Peabody College for Teachers, 1958.
5.
JewellAlice M.A follow-up study of 190 mentally deficient children, excluded because of low mentality from the public schools of the District of Columbia, Divisions I—IX, Sept., 1929 to Feb., 1950 Amer. J. ment. Def., Jan., 1941, 45.
6.
KirkS. A., KarnesMerle B., & KirkWinifred D.You and your retarded child. New York: The Macmillan Co., 1955.
7.
LorenzMarcella H.A follow-up study of eighty-four beta class pupils, Reported in: ReynoldsM. C., EllisR. E., and KilandJ. F., A study of public school children with severe mental retardation. Research Project No. 8, Statistical Division, State Department of Education, St. Paul, Minn., 1953.
8.
TisdallW. J.A follow-up study of trainable mentally handicapped children in Illinois. Amer. J. ment. Def., July. 1960, 65, 11–16.
