Chapman, J. The world turned upside down: "Cromwell (1970), "Wistanley" (1975), "To kill a king" (2003) and the British historical film / James Chapman. Perspectives on European film and history.(2007).

Chapman, James. "The World Turned Upside Down: "Cromwell (1970), "Wistanley" (1975), "To Kill a King" (2003) and the British Historical Film / James Chapman." Perspectives on European Film and History.(2007) .

Chapman, James. "The World Turned Upside Down: "Cromwell (1970), "Wistanley" (1975), "To Kill a King" (2003) and the British Historical Film / James Chapman." Perspectives on European Film and History.(2007), .