Torun International Studies | Scientia et Progressus Fundation. Cambridge University Press.
Cita Chicago (17th ed.)Torun International Studies | Scientia Et Progressus Fundation. Cambridge University Press.
Cita MLA (8th ed.)Torun International Studies | Scientia Et Progressus Fundation. Cambridge University Press.
Atenció: Aquestes cites poden no estar 100% correctes.