John C. G. Röhl, T. b. S. d. B. (2013). Wilhelm II (1.). Cambridge University Press.
Chicago Style aipamenaJohn C. G. Röhl, Translated by Sheila de Bellaigue. Wilhelm II. 1. Cambridge University Press, 2013.
MLA aipamenaJohn C. G. Röhl, Translated by Sheila de Bellaigue. Wilhelm II. 1. Cambridge University Press, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.