APA-referens (7:e uppl.)

Heywood, A. (2015). Political Theory: An Introduction. Palgrave.

Chicago-referens (17:e uppl.)

Heywood, Andrew. Political Theory: An Introduction. New York: Palgrave, 2015.

MLA-referens (9:e uppl.)

Heywood, Andrew. Political Theory: An Introduction. Palgrave, 2015.