Columbia subject headings:
Harvard subject headings:
Economics--Philosophy
Hungary--Politics and government--1918-1945
Personal correspondence.
Polanyi, Karl, 1886-1964--Correspondence.
Princeton subject headings:
Economics--Philosophy.
Hungary--Politics and government--1918-1945.
Philosophy, Modern.
Polanyi, Karl, 1886-1964--Correspondence.
Political science--Philosophy.
World politics--1900-1945.