Tester, K. (1992). The two sovereigns: Social contradictions of European modernity. Routledge.
Chicago Style aipamenaTester, Keith. The Two Sovereigns: Social Contradictions of European Modernity. London: Routledge, 1992.
MLA aipamenaTester, Keith. The Two Sovereigns: Social Contradictions of European Modernity. Routledge, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.