Columbia subject headings:
Harvard subject headings:
Communists--Germany--Biography
Economists--Germany--Biography
Editors--Germany--Biography.
Marx, Karl, 1818-1883
Marx, Karl, 1818-1883--Childhood and youth.
Philosophers--Germany--Biography
Socialism--History
Princeton subject headings:
Communists--Germany--Biography.
Economists--Germany--Biography.
Editors--Germany--Biography.
Marx, Karl, 1818-1883--Childhood and youth.
Marx, Karl, 1818-1883.
Philosophers--Germany--Biography.
Socialism--History.