Dorpalen, A. (1964). Hindenburg and the Weimar Republic. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Dorpalen, Andreas. Hindenburg and the Weimar Republic. Princeton, N. J: Princeton University Press, 1964.
Lua MLA (9ú heag.)Dorpalen, Andreas. Hindenburg and the Weimar Republic. Princeton University Press, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.