Butterfield, H. (1961). History and man's attitude to the past: Their role in the story of civilization. School of Oriental and African Studies, University of London.
Lua i Stíl Chicago (17ú heag.)Butterfield, Herbert. History and Man's Attitude to the Past: Their Role in the Story of Civilization. [London]: School of Oriental and African Studies, University of London, 1961.
Lua MLA (9ú heag.)Butterfield, Herbert. History and Man's Attitude to the Past: Their Role in the Story of Civilization. School of Oriental and African Studies, University of London, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.