Tohutoro APA (7th ed.)
Duckworth, M. (1988). Families of handicapped children. D.C. Cook Pub. Co..
Tohutoru Kātū Chicago (17th ed.)
Duckworth, Marion. Families of Handicapped Children. Elgin, Ill.: D.C. Cook Pub. Co., 1988.
Tohutoro MLA (9th ed.)
Duckworth, Marion. Families of Handicapped Children. D.C. Cook Pub. Co., 1988.
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