Columbia subject headings:
Communism and society.
Marx, Karl, 1818-1883.
Mill, John Stuart, 1806-1873.
Sociology--History.
Harvard subject headings:
Communism and society.
Marx, Karl, 1818-1883
Mill, John Stuart, 1806-1873
Sociology--History
Princeton subject headings:
Communism and society.
Marx, Karl, 1818-1883.
Mill, John Stuart, 1806-1873.
Sociology--History.