Heller, Kirby A.

Placing children in special education = a strategy for equity/ by: National Research Council (U.S.)., Panel on Selection and Placement of Students in Programs for the Mentally Retarded.; Heller, Kirby A.; Holtzman, Wayne H.; Messick, Samuel.; National Research Council (U.S.)., Committee on Child Development Research and Public Policy.; NetLibrary, Inc. (Electronic resources)