Nichols, C. M. (2011). Promise and peril: America at the dawn of a global age. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Nichols, Christopher McKnight. Promise and Peril: America at the Dawn of a Global Age. Cambridge, Mass.: Harvard University Press, 2011.
Lua MLA (9ú heag.)Nichols, Christopher McKnight. Promise and Peril: America at the Dawn of a Global Age. Harvard University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.