1964 Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series III: Menshevik Project (Inter-University Project on the History of Menshevik Movement), 1890s-1977Subseries III.3: Archive on the History of Menshevism, 1898-1972Sub-subseries III.3.6: Seminars, 1960-1968
1964 Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series III: Menshevik Project (Inter-University Project on the History of Menshevik Movement), 1890s-1977Subseries III.3: Archive on the History of Menshevism, 1898-1972Sub-subseries III.3.8: Sotsialisticheskii vestnik Records, 1941-1964Editorial materials:
1964 Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series XIV: Audio Materials, 1960sSubseries XIV.3: Seminars
1964-1967 correspondence, documents, notes, bibliographical information), 1964-1967 Request Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series IX: Russian Files, 1957-1998Subseries IX.2: Exchange Files, 1959-1991Trips to Russia:
1964-1970 Request Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series III: Menshevik Project (Inter-University Project on the History of Menshevik Movement), 1890s-1977Subseries III.1: Project Records, 1957-1977Subsubseries III.1.1: Correspondence, 1959-1977Chronological correspondence, 1959-1970
1964 Sbornik #1 and 2, 1964 Request Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series XVI: Oversize Materials, 1920-1969Subseries XVI.2: Sotsialisticheskii vestnikEditorial materials
1964 Sbornik No.1, 1964 Request Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series III: Menshevik Project (Inter-University Project on the History of Menshevik Movement), 1890s-1977Subseries III.3: Archive on the History of Menshevism, 1898-1972Sub-subseries III.3.8: Sotsialisticheskii vestnik Records, 1941-1964Magazine issues, 1944-1964
1964 Schwarz, Solomon. Letters to:, 1964 Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series III: Menshevik Project (Inter-University Project on the History of Menshevik Movement), 1890s-1977Subseries III.3: Archive on the History of Menshevism, 1898-1972Sub-subseries III.3.8: Sotsialisticheskii vestnik Records, 1941-1964Correspondence, 1942-1964
1966 Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series V: Seminars, 1948-1983Subseries V.3: Russian Research Center, Harvard University, 1948-1970
1966-1967 Request Collection Context Rare Book & Manuscript Library Leopold Haimson Papers, 1890s-1999Series I: Correspondence, 1950s-1990sSubseries I.4: Subject Correspondence, 1959-1999Sub-subseries I.4.1: Invitations for Lectures and Conferences, 1960-1997