SOURCES
The Last Days of John Lennon, by James Patterson with Casey Sherman and Dave Wedge
John Lennon: The Life, by Philip Norman
The Lives of John Lennon, by Albert Goldman
All We Are Saying, by David Sheff
John Lennon: The Rolling Stone Interview (Part One) (Rolling Stone)
John Lennon: The Rolling Stone Interview (Part Two) (Rolling Stone)
Me and Your Dad: Elton John Tells Godson Sean Ono Lennon About John (uDiscoverMusic)
When Elton John Met John Lennon (Culture Sonar)
Elton John Interview with Sean Ono Lennon (BBC Sounds)
John Lennon said he was visited by aliens twice (Rock and Roll Garage)
John Lennon Told Me He’d Met UFO Aliens (UriGeller.com)
John Lennon Sees a UFO in New York City, 1974 (Dangerous Minds)
Yoko Ono Is Told to Pay Producer (NY Times)