Held, D. (1987). Models of democracy. Polity Press.
Chicago-čujuhus (17. p.)Held, David. Models of Democracy. Oxford: Polity Press, 1987.
MLA-čujuhus (9. p.)Held, David. Models of Democracy. Polity Press, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.