MLA

Küng, Hans, et al. Wat Is Kerk?. Roermond: Paul Brand/ J.J. Romen & zonen, 1970.

APA

Küng, H., Wagemans, H., Witte, A., & Martens, K. (1970). Wat is Kerk?. Roermond: Paul Brand/ J.J. Romen & zonen.

Chicago

Küng, Hans, Aldert Witte, and Karel Martens. Wat Is Kerk?. Translated by Hans Wagemans. Roermond: Paul Brand/ J.J. Romen & zonen, 1970.