Held, D. (1987). Models of Democracy. Basil Blackwell.
Cita Chicago (17th ed.)Held, David. Models of Democracy. Oxford: Basil Blackwell, 1987.
Cita MLA (9th ed.)Held, David. Models of Democracy. Basil Blackwell, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.