Drake, R. (2003). Apostles and agitators: Italy's Marxist revolutionary tradition. Harvard University Press.
Chicago-viite (17. p.)Drake, Richard. Apostles and Agitators: Italy's Marxist Revolutionary Tradition. Cambridge, Mass.: Harvard University Press, 2003.
MLA-viite (9. p.)Drake, Richard. Apostles and Agitators: Italy's Marxist Revolutionary Tradition. Harvard University Press, 2003.
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