Expositio in canticum canticorum (fragment).
MLA
Gregory I, Pope, ca. 540-604. Expositio in canticum canticorum (fragment).. [11--].. https://collections.library.yale.edu/catalog/15947362.
APA, 6th edition
Gregory I, Pope, ca. 540-604. ([11--].)[Expositio in canticum canticorum (fragment).]. https://collections.library.yale.edu/catalog/15947362.