1. Berry, Jeffrey M.Lobbying for the People: The Political Behavior of Public Interest Groups. Princeton: Princeton University Press, 1977.
2. Langton, Stuart, ed.Citizen Participation in America. Lexington, Mass.: D.C. Heath & Company, 1978.
3. McFarland, Andrew S.Public Interest Lobbies. Washington, D.C.: American Enterprise Institute, 1976.
4. Vogel, David.Lobbying the Corporation. New York: Basic Books, 1978.