Mental Retardation / 
[edited by] Mary Beirne-Smith, James Patton, Richard Ittenbach. 
 - 4th ed. 
 - xiv, 632 p. :  ill. (some col.) ; 
<br/><br/> includes index 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9780023078835 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.<br/> Intellectual disability. <br/>Education of Intellectually Disabled.
<br/><br/><label>LC Class. No.: </label>RC 570 MEN 1994