Interest group politics / edited by Allan J. Cigler, Burdett A. Loomis. ed. Cigler, Allan J. Cigler, Allan J., 1943- Loomis, Burdett A., 1945- Pressure groups United States. JK1118 .I565 2007 322.430973 INT Includes bibliographical references and index. Washington, DC : CQ Press, c2007. c2007. 2007 Text xiv, 484 p. : http://www.loc.gov/catdir/toc/ecip074/2006035661.html eng United States.