1 2 Clark, Jerome (2000). Extraordinary Encounters: An Encyclopedia of Extraterrestrials and Otherworldly Beings. ABL-CIO. tr. 187–188. ISBN1-57607-249-5.
1 2 3 4 Chambers Dictionary of the Unexplained. Ed. Una McGovern. Chambers, 2007. pp. 489–490. ISBN 0-550-10215-9.
↑ "Former American President Dwight D. Eisenhower had three secret meetings with aliens, a former US government consultant has claimed...Eisenhower and other FBI officials are said to have organised the showdown with the space creatures by sending out 'telepathic messages'...But the claims from Mr Good, a former U.S. Congress and Pentagon consultant, are the first to be made publicly by a prominent academic...The initial meeting is supposed to have taken place with aliens who were 'Nordic' in appearance, but the agreement was eventually 'signed' with a race called 'Alien Greys'."President Eisenhower had three secret meetings with aliens, former Pentagon consultant claims, Daily Mail, retrieved on Sunday, February 28th 2016
1 2 Kelley-Romano, Stephanie (2006). "Mythmaking in Alien Abduction Narratives". Published in Extreme Deviance. Ed. Erich Goode. Pine Forge Press, 2007. p. 51. ISBN 1-4129-3722-1
↑ Randles, Jenny (1994). Alien Contacts & Abductions: The Real Story From the Other Side. Sterling. tr. 102–103. ISBN0-8069-0751-7.
↑ Skal, David (1998). Screams of Reason: Mad Science and Modern Culture. Norton. tr. 208. ISBN0-393-04582-X.
