O'Collins, G. (2017). Catholicism: A very short introduction (2nd edn.). Oxford University Press. https://doi.org/10.1093/actrade/9780198796855.001.0001
Chicago-Zitierstil (17. Ausg.)O'Collins, Gerald. Catholicism: A Very Short Introduction. 2nd edn. [Oxford]: Oxford University Press, 2017. https://doi.org/10.1093/actrade/9780198796855.001.0001.
MLA-Zitierstil (9. Ausg.)O'Collins, Gerald. Catholicism: A Very Short Introduction. 2nd edn. Oxford University Press, 2017. https://doi.org/10.1093/actrade/9780198796855.001.0001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.