Silverman, Franklin H. <br/><br/>
Communication for the Speechless :  an introduction to augmentative communication for the severely communicatively impaired / 
Franklin H. Silverman. 
 - 2nd ed. 
 - Englewood Cliffs, NJ :  Prentice Hall,  c1989. 
 - viii, 344 p. : ill. 
<br/><br/> Includes appendices, references, and indices. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Speech disorders<br/>Communication devices for the disabled<br/>Handicapped--Means of communication