APA (7th ed.) Citation

Kirch, K., & Rodewyk, A. (1957). Helden des Christentums. Helden des Christentums.

Chicago Style (17th ed.) Citation

Kirch, Konrad, and Adolf Rodewyk. "Helden Des Christentums." Helden Des Christentums 1957.

MLA (9th ed.) Citation

Kirch, Konrad, and Adolf Rodewyk. "Helden Des Christentums." Helden Des Christentums, 1957.

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