@book{1615,
	author = {Markus},
	title = {Gregory the Great and his World},
	publisher = {Cambridge University Press},
	url = {https://library.trinitytheologicalcollege.org/cgi-bin/koha/opac-pdf-viewer.pl?file=E%20Books/E%20books%20Philosophy%20%5Bancient%5D/Gregory%20the%20Great%20and%20his%20World%20%5BR.A.%20MARKUS%5D.pdf}
}