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Publisher
- academic press inc.4
- american association on intellectual & developmental disabilities39
- american association on intellectual and developmental disabilities8
- american association on intellectual and developmental disabilities (aaidd)19
- american association on mental retardation6
- american psychological association2
- american psychological association (apa)35
- apa division 16 (school psychology)2
- blackwell scientific publications on behalf of the royal society for mentally handicapped children and adults3