Citazione Stile APA (7a Edizione)

Däniken, E. v., & Heron, M. (2017). Chariots of the gods?: Unsolved mysteries of the past. Souvenir.

Citazione stile Chigago Style (17a edizione)

Däniken, Erich von, e Michael Heron. Chariots of the Gods?: Unsolved Mysteries of the Past. London: Souvenir, 2017.

Citatione MLA (9a ed.)

Däniken, Erich von, e Michael Heron. Chariots of the Gods?: Unsolved Mysteries of the Past. Souvenir, 2017.