Columbia subject headings:
Harvard subject headings:
Darwin, Charles, 1809-1882
Evolution--History
Marx, Karl, 1818-1883
Social Darwinism--History.
Socialism--Austria--History
Socialism--Germany--History
Princeton subject headings:
Evolution (Biology)--Social aspects--Austria.
Evolution (Biology)--Social aspects--Germany.
Marxist anthropology.
Social Darwinism.
Socialism--Austria.
Socialism--Germany.