APA način citiranja (7. izdanje)

Hertling, L. (1972). Communio: Church and papacy in early Christianity. Loyola University Press.

Čikaški stil citiranja (17. izdanje)

Hertling, Ludwig. Communio: Church and Papacy in Early Christianity. Chicago: Loyola University Press, 1972.

MLA način citiranja (8. izdanje)

Hertling, Ludwig. Communio: Church and Papacy in Early Christianity. Loyola University Press, 1972.