1. Newberry Library, VAULT Wing MS ZW 1 .516 DS ID: DS17882 Title: Texts on armaments and ballistics Author: Catholic Church and Leo X Place: Rome Date: die ultima maij, 1516.
2. Newberry Library, VAULT Wing MS ZW 1 .514 DS ID: DS17884 Title: Papal bull Author: Catholic Church and Leo X Date: 1514.