Cita APA

Alexander, E. (2012). Proof of heaven: A neurosurgeon's journey into the afterlife. Piatkus.

Chicago Edition Citation

Alexander, Eben. Proof of Heaven: A Neurosurgeon's Journey into the Afterlife. London: Piatkus, 2012.

Cita MLA

Alexander, Eben. Proof of Heaven: A Neurosurgeon's Journey into the Afterlife. Piatkus, 2012.