Irwin, H. J. (2009). The psychology of paranormal belief: A researcher's handbook. University Of Hertfordshire Press.

Irwin, H. J. The Psychology of Paranormal Belief: A Researcher's Handbook. Hertfordshire, England: University Of Hertfordshire Press, 2009.

Irwin, H. J. The Psychology of Paranormal Belief: A Researcher's Handbook. University Of Hertfordshire Press, 2009.