Columbia subject headings:
Critical theory--History.
Frankfurt school of sociology--Germany--History.
Institut für Sozialforschung (Frankfurt am Main, Germany)--History--20th century.
Sociology--Research--Germany--History--20th century.
Student movements--Germany--History--20th century.
Harvard subject headings:
Critical theory--History.
Frankfurt school of sociology--Germany--History.
Institut für Sozialforschung (Frankfurt am Main, Germany)--History--20th century.
Sociology--Research--Germany--History--20th century.
Student movements--Germany--History--20th century.
Princeton subject headings:
Critical theory--History.
Frankfurt school of sociology--Germany--History.
Institut für Sozialforschung (Frankfurt am Main, Germany)--History--20th century.
Sociology--Research--Germany--History--20th century.
Student movements--Germany--History--20th century.