APA (7th ed.) Citation

Böckle, F., Schillebeeckx, E., & Rahner, K. (1970). El celibato. Herder.

Chicago Style (17th ed.) Citation

Böckle, Franz, Edward Schillebeeckx, and Karl Rahner. El Celibato. Barcelona: Herder, 1970.

MLA (9th ed.) Citation

Böckle, Franz, et al. El Celibato. Herder, 1970.