Gray 2005, p. 380. Gray, Marcus (2005) [1995]. The Clash: Return of the Last Gang in Town (5th revised ed.). London: Helter Skelter. ISBN1-905139-10-1. OCLC60668626.
Letts 2008. Letts, Don; The Clash, Joe Strummer, Mick Jones, Paul Simonon, Topper Headon (15 April 2008). The Clash Live: Revolution Rock (Documentary/TV movie). New York, NY: Legacy Recordings. OCLC227211002.