APA (7th ed.) Citation

Zerull, L., & Schaper, K. (1984). Karl Schaper. Westermann.

Chicago Style (17th ed.) Citation

Zerull, Ludwig, and Karl Schaper. Karl Schaper. Braunschweig: Westermann, 1984.

MLA (9th ed.) Citation

Zerull, Ludwig, and Karl Schaper. Karl Schaper. Westermann, 1984.

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