Citazione Stile APA (7a Edizione)

Casey, J. (2009). After lives: A guide to heaven, hell, and purgatory. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Casey, John. After Lives: A Guide to Heaven, Hell, and Purgatory. Oxford, UK: Oxford University Press, 2009.

Citatione MLA (9a ed.)

Casey, John. After Lives: A Guide to Heaven, Hell, and Purgatory. Oxford University Press, 2009.