^Shelden, Michael. Orwell: The Authorized Biography. New York: HarperCollins. 1991. ISBN 0-06-016709-2. p. 62, read The People of the Abyss while at St. Cyprians; pp. 121, London's book a "definite source of inspiration;" Orwell "was following its example."
Rees, Rosemary; Shephard, Colin, "OCR British Depth Study 1906-1918: British Society in Change", London : Hodder Murray, 23 Jan 2002, ISBN 0-7195-7734-9 Reference - Page 10 Source 4