ClarkG. M.Mainstreaming for the secondary educable mentally retarded: Is it defensible?Focus on Exceptional Children, 1975, 7, 1–5.
2.
ClarkG. M.The state of the art in secondary programs for the handicapped. Thresholds in Secondary Education, 1976, 2, 10-11, 22-23.
3.
Management Analysis Center, Inc.Improving occupational programs for the handicapped. Author, Washington, D.C., 1975.
4.
PhelpsH. A.Competency-based inservice education for secondary school personnel serving special needs students in vocational education: A formative field test evaluation. University of Illinois, Urbana, Illinois, 1976. (Final Report, HEW Project No. 498AHs00481)
5.
WeisensteinG. R.Vocational education for ex- ceptional persons: Have educators let it drop through a crack in their services continuum?Thresholds in Secondary Education, 1976, 2, 16.