Basic interests the importance of groups in politics and in political science / [electronic resource] :
Frank R. Baumgartner and Beth L. Leech.
- Princeton, N.J. : Princeton University Press, c1998.
- xxii, 223 p. ; 25 cm.
Includes bibliographical references (p. [197]-216) and index.
Electronic reproduction. Palo Alto, Calif. : ebrary, 2009. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.
Pressure groups--United States. Lobbying--United States.