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Search keyword：(Subject: Mentally handicapped children Education Yearbooks)
The Educationally retarded and disadvantaged / edited by Paul A. Witty ; editors for the society, Herman G. Richey, Merle M. Coulson
Chicago : [distributed by] University of Chicago Press , 1967
(Yearbook of the National Society for the Study of Education ; new ser., 66th, pt. 1)