Picture communication symbols

Détails bibliographiques
Auteur principal:	Johnson, Roxanna Mayer
Format:	Livre
Langue:	English
Publié:	Solana Beach, Calif. Mayer-Johnson c1995.
Édition:	Wordless ed.
Sujets:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.