1
Decretalium Domini Pape Gregorii noni libellus / [ed. Johannes Chappuis].
Date 1505
Collection:
Bouhéreau
2
Gesta quaedam insignia / Gregorius Papas nonus ; studio atque industria Gerardus Vossius ....
Date 1586
Collection:
Stillingfleet
3
4
Decretales epistole supremi ortodoxe ecclesie principis Gregorii noni / multis mendis a F. J. Thierry interprete.
Date 1540
Collection:
Stearne
5
