Columbia subject headings:
Dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Harvard subject headings:
Dialectic--History--19th century.
Dialectic--History.
Hegel, Georg Wilhelm Friedrich, 1770-1831
Hegel, Georg Wilhelm Friedrich, 1770-1831--Contributions in concept of dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Influence.
Lenin, Vladimir Ilʹich, 1870-1924--Contributions in concept of dialectic.
Marx, Karl, 1818-1883--Contributions in dialectic.
Princeton subject headings:
Dialectic--History.
Hegel, Georg Wilhelm Friedrich, 1770-1831.