Dulio, D. A., Nelson, C. J., & Thurber, J. A. (2000). Crowded airwaves: Campaign advertising in elections. Brookings Insitution Press.
Dyfyniad Arddull ChicagoDulio, David A., Candice J. Nelson, and James A. Thurber. Crowded Airwaves: Campaign Advertising in Elections. Washington, D. C: Brookings Insitution Press, 2000.
Dyfyniad MLADulio, David A., et al. Crowded Airwaves: Campaign Advertising in Elections. Brookings Insitution Press, 2000.
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