Heywood, A. (2007). Politics (3rd ed.). Palgrave.
Chicago-čujuhus (17. p.)Heywood, Andrew. Politics. 3rd ed. New York: Palgrave, 2007.
MLA-čujuhus (9. p.)Heywood, Andrew. Politics. 3rd ed. Palgrave, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.