La Taille, M. d. (1950). Contemplative prayer (2nd ed.). Burns Oates & Washbourne.
Lua i Stíl Chicago (17ú heag.)La Taille, Maurice de. Contemplative Prayer. 2nd ed. London: Burns Oates & Washbourne, 1950.
Lua MLA (8ú heag.)La Taille, Maurice de. Contemplative Prayer. 2nd ed. Burns Oates & Washbourne, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.