TY  - BOOK
AU  - Stephen von Tetzchner; Harald Martinsen; Kristine Stadskleiv
TI  - Augmentative and Alternative Communication for Children, Adolescents and Adults with Developmental Disorders
SN  - 9781003387633
PB  - Taylor and Francis
UR  - http://www.taylorfrancis.com/books/9781003387633
ER  -