Harvey P. Paul & Jones R. Rhodri. (2002). Britain Explored (New ed.). Harlow, Longman, 2002.
Cita Chicago (17th ed.)Harvey P. Paul i Jones R. Rhodri. Britain Explored. New ed. Harlow, Longman, 2002, 2002.
Cita MLA (9th ed.)Harvey P. Paul i Jones R. Rhodri. Britain Explored. New ed. Harlow, Longman, 2002, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.