APA-referens (7:e uppl.)

Plummer, A., Boudens, R., Kenis, L., & Döllinger, J. J. I. v. (1985). Conversations with Dr. Döllinger, 1870-1890. University Press.

Chicago-referens (17:e uppl.)

Plummer, Alfred, Robrecht Boudens, Leo Kenis, och Johann Joseph Ignaz von Döllinger. Conversations with Dr. Döllinger, 1870-1890. Leuven: University Press, 1985.

MLA-referens (8:e uppl.)

Plummer, Alfred, et al. Conversations with Dr. Döllinger, 1870-1890. University Press, 1985.