Cita APA (7a ed.)

Hertling, G., & Becker, W. (1993). Georg von Hertling: 1843-1919. Schöningh.

Cita Chicago Style (17a ed.)

Hertling, Georg, y Winfried Becker. Georg Von Hertling: 1843-1919. Paderborn [etc.]: Schöningh, 1993.

Cita MLA (9a ed.)

Hertling, Georg, y Winfried Becker. Georg Von Hertling: 1843-1919. Schöningh, 1993.