Columbia subject headings:
Marx, Karl, 1818-1883--Influence.
Poland--History--Revolution, 1863-1864.
Harvard subject headings:
Marx, Karl, 1818-1883--Influence.
Poland--History--Revolution, 1863-1864
Princeton subject headings:
Marx, Karl, 1818-1883--Influence.
Poland--History--Revolution, 1863-1864.