Ronan, M. V. R. (1941). Cross-in-circle stones of St. Patrick's Cathedral.
Lua i Stíl Chicago (17ú heag.)Ronan, Myles V. Rev. Cross-in-circle Stones of St. Patrick's Cathedral. 1941.
Lua MLA (9ú heag.)Ronan, Myles V. Rev. Cross-in-circle Stones of St. Patrick's Cathedral. 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
