Richard L. Welsh <br/><br/>
Foundations of orientation and mobility 
Edited by Richard L. Welsh and Bruce B. Blasch 
 - New York  Amercian Foundation for the Blind  1980 
 -  xv,672p. 
<br/><br/> HB 
<br/><br/>Includes bibliography and index 
<br/><br/><br/>eng 
<br/><br/><label>Dewey Class. No.: </label>152.1882  / FOU