APA (7th ed.) Citation

Cooper, J. W. (2011). Immortality. Encyclopedia of Christianity online. doi:10.1163/2211-2685_eco_I81

Chicago Style (17th ed.) Citation

Cooper, John W. "Immortality." Encyclopedia of Christianity Online 2011, https://doi.org/10.1163/2211-2685_eco_I81.

MLA (8th ed.) Citation

Cooper, John W. "Immortality." Encyclopedia of Christianity Online, 2011, https://doi.org/10.1163/2211-2685_eco_I81.