APA (7th ed.) Citation

George, S., & Wolters, F. (1998). Briefwechsel. Castrum Peregrini.

Chicago Style (17th ed.) Citation

George, Stefan, and Friedrich Wolters. "Briefwechsel." Castrum Peregrini 1998.

MLA (8th ed.) Citation

George, Stefan, and Friedrich Wolters. "Briefwechsel." Castrum Peregrini, 1998.

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