Citazione Stile APA (7a Edizione)

Däniken, E. V. (1972). Gods from outer space return to the stars or evidence for the impossible. Bantam Books.

Citazione stile Chigago Style (17a edizione)

Däniken, Erich Von. Gods from Outer Space Return to the Stars or Evidence for the Impossible. New York, Estados Unidos: Bantam Books, 1972.

Citatione MLA (9a ed.)

Däniken, Erich Von. Gods from Outer Space Return to the Stars or Evidence for the Impossible. Bantam Books, 1972.