Halper, S. A., & Clarke, J. (2004). America alone: The neo-conservatives and the global order. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Halper, Stefan A., agus Jonathan Clarke. America Alone: The Neo-conservatives and the Global Order. Cambridge ; New York: Cambridge University Press, 2004.
Lua MLA (9ú heag.)Halper, Stefan A., agus Jonathan Clarke. America Alone: The Neo-conservatives and the Global Order. Cambridge University Press, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.