APA (7th ed.) Citation
Breve de Alexander Papa VIII. Romae ... die VXX [?] Martij M. D. C. XC.
Chicago Style (17th ed.) Citation
Breve De Alexander Papa VIII. Romae ... Die VXX [?] Martij M. D. C. XC.
MLA (9th ed.) Citation
Breve De Alexander Papa VIII. Romae ... Die VXX [?] Martij M. D. C. XC.
Warning: These citations may not always be 100% accurate.