O'Connor, J. (1976). A ballad of William Tirry: An Augustinian friar, 1609-54. Augustinian Community.
Lua i Stíl Chicago (17ú heag.)O'Connor, John. A Ballad of William Tirry: An Augustinian Friar, 1609-54. Galway: Augustinian Community, 1976.
Lua MLA (8ú heag.)O'Connor, John. A Ballad of William Tirry: An Augustinian Friar, 1609-54. Augustinian Community, 1976.
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