Ansolabehere, S., & Iyengar, S. (1996). Going negative: How attack ads shrink and polarize the electorate. The Free.
Cita Chicago (17th ed.)Ansolabehere, Stephen, i Shanto Iyengar. Going Negative: How Attack Ads Shrink and Polarize the Electorate. New York: The Free, 1996.
Cita MLA (8th ed.)Ansolabehere, Stephen, i Shanto Iyengar. Going Negative: How Attack Ads Shrink and Polarize the Electorate. The Free, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.