APA citiranje

Hamann, B., & Hein, R. (1996). The reluctant empress. Berlin: Ullstein.

Παραπομπή Chicago Style

Hamann, Brigitte, και Ruth Hein. The Reluctant Empress. Berlin: Ullstein, 1996.

MLA citiranje

Hamann, Brigitte, και Ruth Hein. The Reluctant Empress. Berlin: Ullstein, 1996.