Paul Kirtz books & textbook
The Skeptical Inquirer: Journal of the Committee for the Scientific Investigation of Claims of the Paranormal: Volume VIII, No. 3: Spring, 1984 [Proving Negatives and the Paranormal Issue]
Kendrick Frazier Paul Kirtz Thomas Gray Wolf Roder Tony Pasquarello Philip J. Klass
Committee for Scientific Investigatio /1984T Paperback
