Husen, Torsten <br/><br/>
Psychological twin research: a methodological study. Vol.1 

 - Stockholm  Almqvist and Wiksell  1959 
 - 153p.  25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Twins
<br/><br/><label>LC Class. No.: </label>BF723.T9H78 Vol.1