TY  - BOOK
T1  - Communication for the speechless an introduction to nonvocal communication systems for the severely communicatively handicapped
A1  - Silverman, Franklin H. 1933-
LA  - English
PP  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
YR  - 1980
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217606087503
OP  - 291
CN  - RC 423 S39
SN  - 0131533614
KW  - Speech disorders.
KW  - Communication devices for the disabled.
KW  - Handicapped : Means of communication.
ER  -