Questia, a part of Gale, Cengage Learning. www.questia.com
Book title: Communicating Partners: 30 Years of Building Responsive Relationships with Late-Talking Children Including Autism, Asperger's Syndrome (Asd), Down Syndrome, and Typical Development : Development Guides for Professionals and Parents.
Contributors: James D. Macdonald - Author.
Publisher: Jessica Kingsley.
Place of publication: London.
Publication year: 2004.
Page number: 15.
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