APA (7th ed.) Citation

Wetter, F., Alemany, J. J., & Blank, J. (1989). Kirche in Europa. Patmos.

Chicago Style (17th ed.) Citation

Wetter, Friedrich, José Joaquín Alemany, and Josef Blank. Kirche in Europa. Düsseldorf: Patmos, 1989.

MLA (9th ed.) Citation

Wetter, Friedrich, et al. Kirche in Europa. Patmos, 1989.