1.
Assistive Technology : Principles and Applications for Communication Disorders and Special E...
by Wendt, Oliver, Lloyd, Lyle ...
ISBN: 9781780522944
List Price: $154.95
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Assistive Technology Principles and Applications for Communication Disorders and Special Edu...
by Quist, Raymond W., Lloyd, L...
ISBN: 9780125696845
List Price: $59.95