John C. G. Röhl, T. b. S. d. B. (2013). Wilhelm II (1.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)John C. G. Röhl, Translated by Sheila de Bellaigue. Wilhelm II. 1. Cambridge University Press, 2013.
Lua MLA (8ú heag.)John C. G. Röhl, Translated by Sheila de Bellaigue. Wilhelm II. 1. Cambridge University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.