Columbia subject headings:
Capital.
Fromm, Erich, 1900-1980.
Marcuse, Herbert, 1898-1979.
Marx, Karl, 1818-1883.
Marxian economics.
Harvard subject headings:
Capital.
Fromm, Erich, 1900-1980
Marcuse, Herbert, 1898-1979
Marx, Karl, 1818-1883
Marxian economics.
Princeton subject headings:
Fromm, Erich, 1900-1980.
Marcuse, Herbert, 1898-1979.
Marx, Karl, 1818-1883.