O'Brien, N. (1995). Columban martyrs of Malate. Missionary Society of St. Columban.
Lua i Stíl Chicago (17ú heag.)O'Brien, Niall. Columban Martyrs of Malate. Malate, Manilan: Missionary Society of St. Columban, 1995.
Lua MLA (9ú heag.)O'Brien, Niall. Columban Martyrs of Malate. Missionary Society of St. Columban, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.