Praßl, F. K. (2011). Semiology, Gregorian. Religion Past and Present online. doi:10.1163/1877-5888_rpp_SIM_124815
Chicago Style (17th ed.) CitationPraßl, Franz Karl. "Semiology, Gregorian." Religion Past and Present Online 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124815.
MLA (8th ed.) CitationPraßl, Franz Karl. "Semiology, Gregorian." Religion Past and Present Online, 2011, https://doi.org/10.1163/1877-5888_rpp_SIM_124815.
Warning: These citations may not always be 100% accurate.