Crome, Len, <br/><br/>
Pathology of mental retardation / 
L. Crome and J. Stern. 
 - 2nd ed. 
 - Edinburgh :  Churchill Livingstone,  1972. 
 - 544 pages :  illustrations ;  25 cm. 
<br/><br/><label>ISBN: </label>0443009279 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.