The Politics of interests : interest groups transformed / edited by Mark P. Petracca. ed. Petracca, Mark P. Petracca, Mark P. Pressure groups United States. JK1118 .P65 1992 322.430973 20 POL Includes bibliographical references (p. 373-402) and index. Boulder : Westview Press, 1992. 1992. 1992 Text xxv, 421 p. : http://www.loc.gov/catdir/enhancements/fy0832/91034437-b.html http://www.loc.gov/catdir/enhancements/fy0832/91034437-d.html eng Transforming American politics United States.