Title: Igrot Ber Borokhov, 1897-1917 (Sidrat mehkarim u-mekorot / Universitat Tel-Aviv, ha-Makhon le-heker ha-Tsiyonut al-shem Hayim Vaitsman)
First published: 1989
Subjects: Correspondence, Labor Zionists, Zionists, Biography, Labor Zionism, History