Intellectual disability :  definition, classification, and systems of supports / 
The AAIDD Ad Hoc Committee on Terminology and Classification 
 - 11th ed. 
 - Washington, DC :  American Association on Intellectual and Developmental Disabilities,  2010 
 - xvi, 259 p. :  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781935304043 (alk. paper)  RM302.84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--classification