Somerville, R. (2012). Pope Urban II's Council of Piacenza: March 1-7, 1095. Oxford University Press. https://doi.org/10.1093/acprof:oso/9780199258598.001.0001
Chicago-Zitierstil (17. Ausg.)Somerville, Robert. Pope Urban II's Council of Piacenza: March 1-7, 1095. Oxford: Oxford University Press, 2012. https://doi.org/10.1093/acprof:oso/9780199258598.001.0001.
MLA-Zitierstil (9. Ausg.)Somerville, Robert. Pope Urban II's Council of Piacenza: March 1-7, 1095. Oxford University Press, 2012. https://doi.org/10.1093/acprof:oso/9780199258598.001.0001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.