Binstock, Robert.1974. "Aging and the Future of American Politics." Annals of the American Academy of Political and Social Science415: 199-212.
2.
_. 1972. "Interest Group Liberalism and the Politics of Aging." The Gerontologist (Autumn): 265-80.
3.
Browne, William P.1977. "Organizational Maintenance: The Internal Operation of Interest Groups." Public Administration Review (January-February): 48-57.
4.
Clark, Peter B., and James Q. Wilson .1961. "Incentive Systems: A Theory of Organizations." Administrative Science Quarterly6 (September): 129-66.
5.
Dobson, Douglas, and David Karns.1979. Public Policy and Senior Citizens. Washington, D.C.: Administration on Aging.
6.
Erikson, Robert, and Norman R. Luttbeg .1973. American Public Opinion . New York: Wiley.
7.
Kuklinski, James H.1979. "Representative-Constituency Linkages: A Review Article ." Legislative Studies Quarterly6: 121-40.
8.
Luttbeg, Norman R.1974. Public Opinion and Public Policy. Homewood, IL: Dorsey.
9.
McClosky, Herbert, Paul J. Hoffman, and Rosemary O'Hara .1960. "Issue Conflict and Consensus Among Party Leaders and Followers." American Political Science Review56: 406-29.
10.
Milbrath, Lester, and M.L. Goel.1977. Political Participalion. Chicago: Rand-McNally.
11.
Moe, Terry M.1981. "Toward a Broader Theory of Interest Groups." Journal of Politics43: 531-43.
12.
_. 1980a. "A Calculus of Group Membership." American Journal of Political Science24: 593-632.
13.
_. 1980b. The Organization of Interests. Chicago : University of Chicago Press.
14.
Montjoy, Robert S., William R. Shaffer, and Ronald E. Weber .1980. "Policy Preferences of Party Elites and Masses: Conflict or Consensus?" American Politics Quarterly83: 319-43.
15.
Nexon, D.1971. "Asymmetry in the Political System: Occasional Activists in the Republican and Democratic Parties, 1956-1964." American Political Science Review65: 716-30.
16.
Olson, Mancur.1971. The Logic of Collective Action. Cambridge, MA: Harvard University Press.
17.
Pratt, Henry.1976. The Gray Lobby. Chicago: University of Chicago Press.
18.
Salisbury, Robert H.1975. "Interest Groups." In F. Greenstein and N. Polsby, eds., Handbook of Political Science: Non-Governmental Politics pp. 171-228. Reading, MA: Addison-Wesley.
19.
Salisbury, Robert H.1969. "An Exchange Theory of Interest Groups." Midwest Journal of Political Science13: 1-32.
20.
Sorauf, Frank J.1976. Party Politics in America. Boston: Little, Brown.