Green 2004, introduction. Green, Oliver, ed. (2004). Metro-Land (British Empire Exhibition 1924 reprinted ed.). Southbank Publishing. ISBN1-904915-00-0. Archived from the original on 28 June 2008. Retrieved 22 April 2012.
Green 2004, introduction. Green, Oliver, ed. (2004). Metro-Land (British Empire Exhibition 1924 reprinted ed.). Southbank Publishing. ISBN1-904915-00-0. Archived from the original on 28 June 2008. Retrieved 22 April 2012.