Cita APA (7th ed.)
Däniken, E. v., & Heron, M. (1968). Chariots of the gods?: Unsolved mysteries of the past. Berkley Books.
Cita Chicago (17th ed.)
Däniken, Erich von, i Michael Heron. Chariots of the Gods?: Unsolved Mysteries of the Past. New York: Berkley Books, 1968.
Cita MLA (9th ed.)
Däniken, Erich von, i Michael Heron. Chariots of the Gods?: Unsolved Mysteries of the Past. Berkley Books, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.