Blissymbolics, speaking without speech
By: Elizabeth S. Helfman.
Edition: 1st ed.
Publisher: Elsevier/Nelson Books
Published: 1980
Place of publication: New York
Language: eng
Number of pages: 152
Subjects: Bliss, Charles Kasiel.; Pasigraphy.; People with disabilities -- Means of communication.
Notes: Bibliography: p. 147.
Includes index.