APA (7th ed.) Citation

Seckler, M., Silberman, L. H., Fries, H., Mann, G., Rahner, K., & Engelhardt, P. (1987). Tradiciðn y progreso. SM.

Chicago Style (17th ed.) Citation

Seckler, Max, Lou H. Silberman, Heinrich Fries, Golo Mann, Karl Rahner, and Paulus Engelhardt. Tradiciðn Y Progreso. Madrid: SM, 1987.

MLA (9th ed.) Citation

Seckler, Max, et al. Tradiciðn Y Progreso. SM, 1987.