Kelly James Clark. (1993). Philosophers who believe: The spiritual journeys of 11 leading thinkers. IVP.
Lua i Stíl Chicago (17ú heag.)Kelly James Clark. Philosophers Who Believe: The Spiritual Journeys of 11 Leading Thinkers. Illinois: IVP, 1993.
Lua MLA (9ú heag.)Kelly James Clark. Philosophers Who Believe: The Spiritual Journeys of 11 Leading Thinkers. IVP, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.