Hughes, J. (1843). A lecture on the mixture of civil and ecclesiastical power: In the governments of the Middle Ages. New York.
Lua i Stíl Chicago (17ú heag.)Hughes, John. A Lecture on the Mixture of Civil and Ecclesiastical Power: In the Governments of the Middle Ages. New York, 1843.
Lua MLA (8ú heag.)Hughes, John. A Lecture on the Mixture of Civil and Ecclesiastical Power: In the Governments of the Middle Ages. New York, 1843.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.