McCarty, N. M., Poole, K. T., & Rosenthal, H. (2006). Polarized America: The dance of ideology and unequal riches. MIT Press.
Lua i Stíl Chicago (17ú heag.)McCarty, Nolan M., Keith T. Poole, agus Howard Rosenthal. Polarized America: The Dance of Ideology and Unequal Riches. Cambridge, Mass.: MIT Press, 2006.
Lua MLA (9ú heag.)McCarty, Nolan M., et al. Polarized America: The Dance of Ideology and Unequal Riches. MIT Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.