Barry, W. A. (1990). Paying attention to God: Discernment in prayer. Ave Maria Press.
Lua i Stíl Chicago (17ú heag.)Barry, William A. Paying Attention to God: Discernment in Prayer. Notre Dame, Ind.: Ave Maria Press, 1990.
Lua MLA (8ú heag.)Barry, William A. Paying Attention to God: Discernment in Prayer. Ave Maria Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.