APA (7th ed.) Citation

Dwyer, G. P. (1959). Purgatory. Catholic Truth Society.

Chicago Style (17th ed.) Citation

Dwyer, G. P. Purgatory. London: Catholic Truth Society, 1959.

MLA (9th ed.) Citation

Dwyer, G. P. Purgatory. Catholic Truth Society, 1959.

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