Sources Consulted for Factual Information about Five Billion Years

• Festival des films du monde / World Film Festival [Programme]. Montréal: Festival des films du monde / World Film Festival, 1982. [English / French]
• National Film Board of Canada. "NFB -- Five Billion Years" National Film Board of Canada. http://www.onf-nfb.gc.ca/eng/collection/film/?id=13564.