Cita APA (7th ed.)

Roland, P. (2000). Investigating the unexplained: Explorations into ancient mysteries, the paranormal & strange phenomena. Piatkus.

Cita Chicago (17th ed.)

Roland, Paul. Investigating the Unexplained: Explorations into Ancient Mysteries, the Paranormal & Strange Phenomena. London: Piatkus, 2000.

Cita MLA (9th ed.)

Roland, Paul. Investigating the Unexplained: Explorations into Ancient Mysteries, the Paranormal & Strange Phenomena. Piatkus, 2000.