(2011). Correspondence Courses. Encyclopedia of Christianity online. doi:10.1163/2211-2685_eco_C1330
芝加哥风格引文"Correspondence Courses." Encyclopedia of Christianity Online 2011, https://doi.org/10.1163/2211-2685_eco_C1330.
MLA引文"Correspondence Courses." Encyclopedia of Christianity Online, 2011, https://doi.org/10.1163/2211-2685_eco_C1330.
警告：这些引文格式不一定是100％准确.