APA (7th ed.) Citation

Heyer, F., & Chadwick, H. (1977). Konfessionskunde. De Gruyter.

Chicago Style (17th ed.) Citation

Heyer, Friedrich, and Henry Chadwick. Konfessionskunde. Berlin [u.a.]: De Gruyter, 1977.

MLA (9th ed.) Citation

Heyer, Friedrich, and Henry Chadwick. Konfessionskunde. De Gruyter, 1977.

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