The Brain in unclassified mental retardation. 
Edited by J. B. Cavanagh. 
 - Baltimore,  Williams & Wilkins Co.,  1972. 
 - xi, 333 p.  illus.  22 cm. 
<br/><br/> "Study group held at the Ciba Foundation, London, under the auspices of the Institute for Research into Mental Retardation." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0443009163 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation--Congresses<br/>Brain chemistry--Congresses<br/>Mental retardation--Prevention--Congresses
<br/><br/><label>LC Class. No.: </label>WM460.55