Bullard, Eddie. “The Believer: Alien Encounters, Hard Science, and the Passion of John Mack by Ralph Blumenthal”. Journal of Scientific Exploration 35, no. 4 (January 15, 2022): 1043-1057. Accessed July 13, 2024. https://journalofscientificexploration.org/index.php/jse/article/view/2215.