Plomin, Robert,  1948- <br/><br/>
Origins of individual differences in infancy :  the Colorado Adoption Project / 
By Robert Plomin and John C. DeFries. 
 - Orlando, Fla. :   Academic Press ;   1985. 
 - 406 p. :    ill. ;   24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0125582803 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Individuality in children.<br/>Infant psychology.<br/>Nature and nurture.<br/>Children, Adopted--Psychology.