Worchel, Stephen. <br/><br/>
Psychology of intergroup relation / 
Stephen Worchel. 
 - 2nd ed. 
 - Chicago :  Nelson- Hall,  c1986. 
 - 429 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Interpersonal relations.<br/>Social groups.
<br/><br/><label>LC Class. No.: </label>HM133  / .W67