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Gray Barker, J. Hynek, Erich von Däniken, Ivan Sanderson and Otto Binder
2019
Erich von Däniken, Renato Vesco, Brad Steiger, George Leonard and Lou Sahadi
1976
Erich von Däniken, Lucius Farish, Wendelle Stevens, Ivan Sanderson and Kevin Randle
1977
Erich von Däniken, Fred Steckling, Hugh Cochrane, Don Wilson and Harry Belil
Erich von Däniken
1996
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2007