Entertainment Software Association. E3 Logo. Digital image. E3 Expo. Entertainment Software Association, 16 Apr. 2012. Web. 14 May 2012. <http://cdn.slashgear.com/wp-content/uploads/2012/04/e3logo.png>.
Miyamoto, S. (2011, July 18). [Mario with a super mushroom]. Retrieved May 14, 2012, from http://www.mariowiki.com/File:Mario_SMB.png