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- Buonarroti, Philippe, 1761-1837 (1)
- Engels, Friedrich, 1820-1895 (1)
- Institut marksizma-leninizma (Moscow, R.S.F.S.R.) (1)
- Kandelʹ, E. P. (1)
- Kaye, Harvey J., 1949- (1)
- Marx, Karl, 1818-1883 (1)
- McClelland, Keith (1)
- O'Brien, James Bronterre, 1805-1864 (1)
- Pozzoli, Claudio (1)
- Rossiter, Clinton Lawrence, 1917-1970 (1)