APA (7th ed.) Citation

Hartmann, v. A., & Kippenberg, B. (1959). Gregorius. Langewiesche-Brandt.

Chicago Style (17th ed.) Citation

Hartmann, von Aue, and Burkhard Kippenberg. Gregorius. Ebenhausen: Langewiesche-Brandt, 1959.

MLA (8th ed.) Citation

Hartmann, von Aue, and Burkhard Kippenberg. Gregorius. Langewiesche-Brandt, 1959.

Warning: These citations may not always be 100% accurate.