The Political influence of ideas : policy communities and the social sciences / edited by Stephen Brooks and Alain-G. Gagnon. Brooks, Stephen, 1956- Gagnon, Alain. Policy sciences. Social sciences. Pressure groups. H97 .P665 1994 321.61 20 POL Includes bibliographical references (p. [211]-230) and index. Westport, Conn. : Praeger, 1994. 1994. 1994 Text viii, 240 p. : eng