Citazione Stile APA (7a Edizione)
Geer, J. G. (2006). In defense of negativity: Attack ads in presidential campaigns. University of Chicago Press.
Citazione stile Chigago Style (17a edizione)
Geer, John Gray. In Defense of Negativity: Attack Ads in Presidential Campaigns. Chicago: University of Chicago Press, 2006.
Citatione MLA (9a ed.)
Geer, John Gray. In Defense of Negativity: Attack Ads in Presidential Campaigns. University of Chicago Press, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.