Special issue of "Davar LeZion" (A Word for Zion) newspaper marking 60 years since death of Berl Katznelson, newspaper's founder and first editor (included as supplement to Haaretz newspaper).
Personal letter from Berl Katznelson to Leah, from 29/8/1939, in which he mentions meeting with Jabotinsky.
Report by Katznelson about his conversation with Zeev Jabotinsky, excerpted from protocol of Mapai (Workers Party of Eretz Israel) Headquarters meeting, on 21/9/1939. (photocopies from Labor Archives).
Booklet about Berl Katznelson.