Pflanze, O. (1990). Bismarck and the development of Germany ([2nd ed.].). Princeton University Press.
Chicago Style aipamenaPflanze, Otto. Bismarck and the Development of Germany. [2nd ed.]. Princeton, N.J: Princeton University Press, 1990.
MLA aipamenaPflanze, Otto. Bismarck and the Development of Germany. [2nd ed.]. Princeton University Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.