Cita APA (7a ed.)

Fenn, R. K. (1996). The persistence of purgatory. Cambridge University Press.

Cita Chicago Style (17a ed.)

Fenn, Richard K. The Persistence of Purgatory. Cambridge [etc.]: Cambridge University Press, 1996.

Cita MLA (9a ed.)

Fenn, Richard K. The Persistence of Purgatory. Cambridge University Press, 1996.