Ostrom Elinor Governing the commons the evolution of institutions for collective action - Cambridge Cambridge Univ. Press 1990 - xviii, 280p. cm. - The political economy of institutions and decisions . Rep. of 1990 Standard No.: 217,173 Source: Textual Subjects--Topical Terms: POLITICAL SCIENCE Dewey Class. No.: W:3(X9S:27), N0