Hoffman, Lois, et al. <br/><br/>
Developmental psychology today 

 - 6 
 -  McGraw-Hill International Book Co., New York  1994 
 - 652 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential & genetic psychology (Developmental psychology)
<br/><br/><label>Dewey Class. No.: </label>155  HOF-D6