APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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