Christie, D. B. (1932). While the world revolves: Being the life and martyrdom of Blessed John Houghton, Carthusian monk and martyr. Burns, Oates & Washbourne.
Lua i Stíl Chicago (17ú heag.)Christie, Donald Benedict. While the World Revolves: Being the Life and Martyrdom of Blessed John Houghton, Carthusian Monk and Martyr. London: Burns, Oates & Washbourne, 1932.
Lua MLA (8ú heag.)Christie, Donald Benedict. While the World Revolves: Being the Life and Martyrdom of Blessed John Houghton, Carthusian Monk and Martyr. Burns, Oates & Washbourne, 1932.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.