APA (7th ed.) Citation

O'Collins, G. (2008). Catholicism: A very short introduction. Oxford University Press.

Chicago Style (17th ed.) Citation

O'Collins, Gerald. Catholicism: A Very Short Introduction. Oxford: Oxford University Press, 2008.

MLA (9th ed.) Citation

O'Collins, Gerald. Catholicism: A Very Short Introduction. Oxford University Press, 2008.

Warning: These citations may not always be 100% accurate.