Teshuvos HaRishonim / 19 Volume Set שו"ת הראשונים סעט י"ט כרכים
Includes Teshuvos HaRif, HaRashba, HaRivash, HaTashbatz, HaRosh, Zichron Yehudah of the Ri ben HaRosh, and the Rashbash. Edited and arranged anew based on earlier printings and manuscripts with many additions and supplemental material, notes and sources, comments and explanations, introductions, addendum and indexes.