Markschies, C. J. (2011). Ptolemy the Gnostic. Religion Past and Present online. doi:10.1163/1877-5888_rpp_SIM_124506
Style de citation Chicago (17e éd.)Markschies, Christoph Johannes. "Ptolemy the Gnostic." Religion Past and Present Online 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124506.
Style de citation MLA (8e éd.)Markschies, Christoph Johannes. "Ptolemy the Gnostic." Religion Past and Present Online, 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124506.
Attention : ces citations peuvent ne pas être correctes à 100%.