APA (7th ed.) Citation

Wolfskehl, K., & Susman, M. Briefe. Castrum Peregrini, 20-72.

Chicago Style (17th ed.) Citation

Wolfskehl, Karl, and Margarete Susman. "Briefe." Castrum Peregrini : 20-72.

MLA (8th ed.) Citation

Wolfskehl, Karl, and Margarete Susman. "Briefe." Castrum Peregrini, , pp. 20-72.

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