Cita APA (7th ed.)

EYCK, E. (1968). Bismark and the German empire (3rd ed.). Unwin.

Cita Chicago (17th ed.)

EYCK, Erich. Bismark and the German Empire. 3rd ed. London: Unwin, 1968.

Cita MLA (9th ed.)

EYCK, Erich. Bismark and the German Empire. 3rd ed. Unwin, 1968.