O'Malley, J. W. (1968). Giles of Viterbo on church and reform: A study in Renaissance thought. E. J. Brill.
Lua i Stíl Chicago (17ú heag.)O'Malley, John W. Giles of Viterbo on Church and Reform: A Study in Renaissance Thought. Leiden: E. J. Brill, 1968.
Lua MLA (8ú heag.)O'Malley, John W. Giles of Viterbo on Church and Reform: A Study in Renaissance Thought. E. J. Brill, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.