Cita APA (7a ed.)

Baker, R. A., & Nickell, J. (1992). Missing pieces: How to investigate ghosts, UFOs, psychics, & other mysteries. Prometheus Books.

Cita Chicago Style (17a ed.)

Baker, Robert A., y Joe Nickell. Missing Pieces: How to Investigate Ghosts, UFOs, Psychics, & Other Mysteries. Buffalo, N.Y: Prometheus Books, 1992.

Cita MLA (9a ed.)

Baker, Robert A., y Joe Nickell. Missing Pieces: How to Investigate Ghosts, UFOs, Psychics, & Other Mysteries. Prometheus Books, 1992.