Hurlock, Elizabeth B. <br/><br/>
Developmental psychology :  a lifespan approach. 

 - 5th ed. 
 - New Delhi :  McGraw-Hill,  1980. 
 - xiv, 477 p. 
<br/><br/><label>ISBN: </label>0070993637 :  KES 595 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developmental psychology.