APA (7th ed.) Citation

Windthorst, L., & Aschoff, H. (1991). Ludwig Windthorst: 1812-1891. Schöningh.

Chicago Style (17th ed.) Citation

Windthorst, Ludwig, and Hans-Georg Aschoff. Ludwig Windthorst: 1812-1891. Paderborn [etc.]: Schöningh, 1991.

MLA (9th ed.) Citation

Windthorst, Ludwig, and Hans-Georg Aschoff. Ludwig Windthorst: 1812-1891. Schöningh, 1991.