Thornton, M. (1984). Spiritual direction. Cowley.
Lua i Stíl Chicago (17ú heag.)Thornton, Martin. Spiritual Direction. [United States]: Cowley, 1984.
Lua MLA (8ú heag.)Thornton, Martin. Spiritual Direction. Cowley, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.