APA (7th ed.) Citation

Gray, J. (2008). Black mass: Apocalyptic religion and the death of Utopia. Penguin Books.

Chicago Style (17th ed.) Citation

Gray, John. Black Mass: Apocalyptic Religion and the Death of Utopia. London: Penguin Books, 2008.

MLA (9th ed.) Citation

Gray, John. Black Mass: Apocalyptic Religion and the Death of Utopia. Penguin Books, 2008.

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