Sources consultées pour l'information factuelle sur Power in Perpetuity

• Screen Culture Research Group, Concordia University. "Canadian Educational, Sponsored, and Industrial Film Archive" Department of Communication Studies, Concordia University. http://www.screenculture.org/cesif/.
• National Film Board of Canada. "NFB -- Power in Perpetuity" National Film Board of Canada. http://onf-nfb.gc.ca/en/our-collection/?idfilm=12671.