Picture communication symbols

Dettagli Bibliografici
Autore principale:	Johnson, Roxanna Mayer
Natura:	Libro
Lingua:	English
Pubblicazione:	Solana Beach, Calif. Mayer-Johnson c1995.
Edizione:	Wordless ed.
Soggetti:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.