Hart, P., & Quenon, P. (1979). Carved in stone: The Peter Watts way of the cross. Ave Maria Press.
Lua i Stíl Chicago (17ú heag.)Hart, Patrick, agus Paul Quenon. Carved in Stone: The Peter Watts Way of the Cross. Notre Dame, Ind.: Ave Maria Press, 1979.
Lua MLA (8ú heag.)Hart, Patrick, agus Paul Quenon. Carved in Stone: The Peter Watts Way of the Cross. Ave Maria Press, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.