APA (7th ed.) Citation

July, F. O. (2011). Philosophia perennis. Encyclopedia of Christianity online. doi:10.1163/2211-2685_eco_P.91

Chicago Style (17th ed.) Citation

July, Frank Otfried. "Philosophia Perennis." Encyclopedia of Christianity Online 2011, https://doi.org/10.1163/2211-2685_eco_P.91.

MLA (8th ed.) Citation

July, Frank Otfried. "Philosophia Perennis." Encyclopedia of Christianity Online, 2011, https://doi.org/10.1163/2211-2685_eco_P.91.