Olson, Mancur. <br/><br/>
The logic of collective action;  public goods and the theory of groups 
[by] Mancur Olson, Jr. 
 - Cambridge, Mass.,  Harvard University Press,  1965. 
 - x, 176 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups.<br/>Social interaction.
<br/><br/><label>LC Class. No.: </label>HM131  / .O55