Hopkins, A. G. (2018). American Empire. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Hopkins, A G. American Empire. Princeton University Press, 2018.
Lua MLA (9ú heag.)Hopkins, A G. American Empire. Princeton University Press, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.