American Cosmic: UFOs, Religion, Technology, Diana Walsh Pasulka, Oxford University Press; 1st Printing edition (February 20, 2019), 288pp., ISBN-13: 978-0190692889

Heaven Can Wait: Purgatory in Catholic Devotional and Popular Culture, by Diana Walsh Pasulka, Oxford University Press, (November 21, 2014), 224pp., ISBN-13: 978-0195382020.

American Cosmic: UFOs, Religion, Technology, by Diana Walsh Pasulka, Oxford University Press (February 20, 2019), 288pp, ISBN-13: 978-0190692889.