Columbia subject headings:
Political science--Germany--History--20th century.
Schmitt, Carl, 1888-1985.
State, The--History--20th century.
Harvard subject headings:
Political science--Germany--History--20th century
Schmitt, Carl, 1888-1985.
State, The--History--20th century
Princeton subject headings:
Habermas, Jürgen.
Schmitt, Carl, 1888-1985--Public opinion.
Schmitt, Carl, 1888-1985.