Ippolito, D. S., & Walker, T. G. (1980). Political parties, interest groups, and public policy: Group influence in American politics. Prentice-Hall.
Chicago-Zitierstil (17. Ausg.)Ippolito, Dennis S., und Thomas G. Walker. Political Parties, Interest Groups, and Public Policy: Group Influence in American Politics. Englewood Cliffs, NJ: Prentice-Hall, 1980.
MLA-Zitierstil (9. Ausg.)Ippolito, Dennis S., und Thomas G. Walker. Political Parties, Interest Groups, and Public Policy: Group Influence in American Politics. Prentice-Hall, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.