Acquisitions Department, 1949-1950 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1950-1951 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1950-1961 Box ii.129 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files, Second Sequence from 1942 to 1960, 1944-1969Subject Classifications for Library Office Central Files rev, July 1964
Acquisitions Department, 1951-1952 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1952-1953 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1953-1954 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1954-1955 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1955-1956 Box ii.68 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files-First Sequence from 1942 to 1960, 1943-1963
Acquisitions Department, 1961 Box ii.172 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files from 1950 to 1970, 1943-1973
Acquisitions Department, Serials Box ii.192 Columbia University Archives Columbia University Library Office files, 1890-1998Series II. Library Office Files, 1890-1998Subseries II.2. Subject Files, 1920s-1973Subject Files from 1950 to 1970, 1943-1973Classification and Operating Analysis