John Keel. Operation Trojan Horse. Anomalist Books, 2013.
Kenn Thomas. Maury Island UFO. Illuminet Press, 1999.
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Timothy Green Beckley. The UFO Silencers. Inner Light Publications. 1990.
Greg Bishop. Project Beta: The Story of Paul Bennewitz, National Security and the Creation of a Modern UFO myth. Paraview/Pocket, 2005.
Jenny Randles. Investigating the Truth Behind MIB - the Men in Black Phenomenon. Piatkus, 1997.🔻
