Shaffer David R. <br/><br/>
Development Psychology childhood and adolescence/ 
David R.Shaffer 
 - 5th ed. 
 - Toronto;  Cole publishing company,  1999. 
 - xxxi,641 p. :  ill. ; 
<br/><br/> includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0534355927 
<br/><br/><label>Subjects--Topical Terms: </label><br/>psychology
<br/><br/><label>LC Class. No.: </label>BF721.S4688 1999