Mental Retardation  A life Cycle Approach 
Clifford J.Drew, Donald R.Logan, Michael L.Hardman 
 - 3rd edition 
 - United States of America  A Bell 7 Howell Company  1986 
 - 468 pg  25 cm 
<br/><br/><label>ISBN: </label>0675205859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>153 DRE