Roggenkamp, A. (2011). Catherine of Siena. Encyclopedia of Christianity online. doi:10.1163/2211-2685_eco_C240
Cita Chicago Style (17a ed.)Roggenkamp, Antje. "Catherine of Siena." Encyclopedia of Christianity Online 2011, https://doi.org/10.1163/2211-2685_eco_C240.
Cita MLA (8a ed.)Roggenkamp, Antje. "Catherine of Siena." Encyclopedia of Christianity Online, 2011, https://doi.org/10.1163/2211-2685_eco_C240.
Precaución: Estas citas no son 100% exactas.