Picture communication symbols

Bibliographische Detailangaben
1. Verfasser:	Johnson, Roxanna Mayer
Format:	Buch
Sprache:	English
Veröffentlicht:	Solana Beach, Calif. Mayer-Johnson c1995.
Ausgabe:	Wordless ed.
Schlagworte:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.