Olson, Mancur. The logic of collective action; public goods and the theory of groups. - [Rev. ed.] - Cambridge, Mass., Harvard University Press [2001, c1971] - x, 186 p. 22 cm. - Harvard economic studies, v. 124. . - Harvard economic studies, v. 124. . Includes bibliographical references. ISBN: 0674537513 LCCN: 76029685 Subjects--Topical Terms: Social groups.Social interaction. LC Class. No.: HM131 / .O55 2001