JowettB.The republic of Plato. Oxford: The Clarendon Press, 1888.
10.
LippmanL., & GoldbergI. I.Right to education: Anatomy of the Pennsylvania Case and its implications for exceptional children. 1973.
11.
MannH.Tenth annual report covering the year 1846. Boston: Dutton and Wentworth, State Printers, 1847.
12.
MaslowA. H.Motivation and personality. (2nd ed.) New York: Harper & Row, 1970.
13.
MercerJ. R.Labeling the mentally retarded. Berkeley: University of California Press, 1973.
14.
WyattK. COHI & the singing telegram. In ConnorF. P.RusalemH.P., & BakenJ.W. (Eds.), Professional preparation of educators of crippled children: Competency based programming. New York: Teachers College, Columbia University, in press.
15.
ZiglerE. F.Child care in the 70's. Inequality in Education, 1972, 13, 17–28.