Mental retardation :  a review of research / 
edited by Harvey A. Stevens and Rick Heber. 
 - Chicago :  University of Chicago Press,  [1964] 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>64015808 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.
<br/><br/><label>LC Class. No.: </label>RC570  / .S7 
<br/><br/><label>Dewey Class. No.: </label>132.2