Armstrong, R. (1984). Out to change the world: A life of Father James Keller of the Christophers. Crossroad.
Lua i Stíl Chicago (17ú heag.)Armstrong, Richard. Out to Change the World: A Life of Father James Keller of the Christophers. New York: Crossroad, 1984.
Lua MLA (8ú heag.)Armstrong, Richard. Out to Change the World: A Life of Father James Keller of the Christophers. Crossroad, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.