Columbia subject headings:
Biographies.
Communism and society.
Communism--History.
Economists--Germany--Biography.
Europe--Intellectual life--19th century.
Marx, Karl, 1818-1883.
Philosophers--Germany--Biography.
Philosophy, Marxist.
Socialism--History.
Socialists--Germany--Biography.
Harvard subject headings:
Biographies.
Communism and society.
Communism--History
Economists--Germany--Biography
Europe--Intellectual life--19th century.
Marx, Karl, 1818-1883
Philosophers--Germany--Biography
Philosophy, Marxist.
Socialism--History
Socialists--Germany--Biography
Princeton subject headings:
Biographies.
Communism and society.
Communism--History.
Economists--Germany--Biography.
Europe--Intellectual life--19th century.
Marx, Karl, 1818-1883.
Philosophers--Germany--Biography.
Philosophy, Marxist.
Socialism--History.
Socialists--Germany--Biography.