Nimmo, D. D., & Ungs, T. D. (1967). American political patterns; conflict and consensus. Little.
Cita Chicago (17th ed.)Nimmo, Dan D., i Thomas Dale Ungs. American Political Patterns; Conflict and Consensus. Boston: Little, 1967.
Cita MLA (9th ed.)Nimmo, Dan D., i Thomas Dale Ungs. American Political Patterns; Conflict and Consensus. Little, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.