Picture communication symbols

書誌詳細
第一著者:	Johnson, Roxanna Mayer
フォーマット:	図書
言語:	English
出版事項:	Solana Beach, Calif. Mayer-Johnson c1995.
版:	Wordless ed.
主題:	Nonverbal communication in education. Special education. Self-help devices for people with disabilities. Signs and symbols. Visual communication.