Penrose, Lionel S <br/><br/>
Mental Defect 

 - London  Macmillan  1951 
 - 183p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy & psychology--Zoology--psychologyComparative psychology
<br/><br/><label>Dewey Class. No.: </label>156.3  / PEN-M