1. Seymour Martin Lipset, Martin Trow, and James Coleman, Union Democracy (New York: Free Press, 1956);
2. Robert Blauner, Alienation and Freedom (Chicago: University of Chicago Press, 1964).
3. Anthony Smith, Goodbye Gutenberg: The Newspaper Revolution of the 1980s (New York: Oxford University Press, 1980), pp. 236–237.
4. Randy Hodson, “Labor in the Monopoly, Competitive, and State Sectors of Production”Politics and Society 8 (1978), pp. 429–480.
5. Robert Max Jackson, The Formation of Craft Labor Markets (New York: Academic Press, 1984)