Designing and using assistive technology :  the human perspective / 
edited by David B. Gray, Louis A. Quatrano and Morton L. Lieberman 
 - Baltimore :  Paul H. Brookes,  1998 
 - 326 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>1557663149  RM124.62 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Self-Help Devices
<br/><br/><label>National Library of Medicine Call No.: </label>WB320