TY  - BOOK
AU  - Silverman F H
TI  - Comjmunication for the spechless:  an introduction to Nonvocal communcation systems for the severely communicatively handicapped
U1  - S:682:4, M0 
PY  - 1980///
CY  - Englewood
PB  - Prentice Hall      
KW  - PSYCHOLOGY
ER  -