Readings in collective  behavior / 
edited by Robert R. Evans. 
 - Chicago :  Rand McNally and Company,  1968. 
 - 659 pages. 
 - (Rand McNally Sociology Series) .
<br/><br/> Includes  index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group psychology.<br/>Social groups.<br/>Social groups.