Wheelan, Susan A. <br/><br/>
Group processes :  a developmental perspective / 
Susan A. Whelan. 
 - Boston :  Allyn and Bacon,  1994. 
 - 290 p. ;  24 cm. 
<br/><br/>p. 241-272. 
<br/><br/><label>ISBN: </label>0205148093  RM71.15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups.<br/>Social psychology.<br/>Intergroup relations.