Kalck, X. (2015). Politics is History : Testing Oppen's “Test of Truth”.
Cita Chicago (17th ed.)Kalck, Xavier. Politics Is History : Testing Oppen's “Test of Truth”. 2015.
Cita MLA (8th ed.)Kalck, Xavier. Politics Is History : Testing Oppen's “Test of Truth”. 2015.
Atenció: Aquestes cites poden no estar 100% correctes.