Picture communication symbols

Detalles Bibliográficos
Autor Principal:	Johnson, Roxanna Mayer
Formato:	Libro
Idioma:	English
Publicado:	Solana Beach, Calif. Mayer-Johnson c1995.
Edición:	Wordless ed.
Subjects:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.