Picture communication symbols

Библиографические подробности
Главный автор:	Johnson, Roxanna Mayer
Формат:	‌
Язык:	English
Опубликовано:	Solana Beach, Calif. Mayer-Johnson c1995.
Редактирование:	Wordless ed.
Предметы:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.