1. Columbia University Rare Book & Manuscript Library, MS X893 M841 DS ID: DS18948 Title: Theological text and Polemics Author: Saúl Levi Morteira Place: undetermined Date: 16--
2. Columbia University Rare Book & Manuscript Library, MS X893 J78 DS ID: DS18966 Title: Polemics Author: Joshua Benzion Segre Place: Italy Date: 17--