Cowie, Valerie A., <br/><br/>
A study of the early development of mongols. 

 - 110 páginas 
 - Institute for research into mental retardation. monograph ;  1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Síndrome de Down
<br/><br/><label>LC Class. No.: </label>RC571  / C67 1970