Albright, J. R. (2011). Planck, Max Karl Ernst Ludwig. Religion Past and Present online. doi:10.1163/1877-5888_rpp_SIM_124399
Chicago Style (17th ed.) CitationAlbright, John R. "Planck, Max Karl Ernst Ludwig." Religion Past and Present Online 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124399.
MLA (8th ed.) CitationAlbright, John R. "Planck, Max Karl Ernst Ludwig." Religion Past and Present Online, 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124399.
Warning: These citations may not always be 100% accurate.