Columbia subject headings:
Engels, Friedrich, 1820-1895.
Marx, Karl, 1818-1883.
Materialism--History--19th century.
Stirner, Max, 1806-1856.
Harvard subject headings:
Engels, Friedrich, 1820-1895
Marx, Karl, 1818-1883
Materialism--History--19th century.
Stirner, Max, 1806-1856.
Princeton subject headings:
Engels, Friedrich, 1820-1895.
Marx, Karl, 1818-1883.
Materialism--History--19th century.
Stirner, Max, 1806-1856.