«New products put more zip into the video-game market»(abstract).Chicago Sun-Times,27-08-1990[Consulta: 5 març 2010].«On Friday, area Toys R Us stores […] were expecting SNES, with a suggested retail price of $199.95, any day, said Brad Grafton, assistant inventory control manager for Toys R Us. Based on the publication date, the "Friday" mentioned would be August 23, 1990. Many modern online sources (circa 2005 and later) report August 13.»Arxivat de novembre 3, 2012, a Wayback Machine. «Còpia arxivada». Arxivat de l'original el de novembre 3, 2012.[Consulta: de març 31, 2021].
«New products put more zip into the video-game market»(abstract).Chicago Sun-Times,27-08-1990[Consulta: 5 març 2010].«On Friday, area Toys R Us stores […] were expecting SNES, with a suggested retail price of $199.95, any day, said Brad Grafton, assistant inventory control manager for Toys R Us. Based on the publication date, the "Friday" mentioned would be August 23, 1990. Many modern online sources (circa 2005 and later) report August 13.»Arxivat de novembre 3, 2012, a Wayback Machine. «Còpia arxivada». Arxivat de l'original el de novembre 3, 2012.[Consulta: de març 31, 2021].