Lawson, K. (1997). The human polity: A comparative introduction to political science (4th ed.). Houghton Mifflin.
Chicago-referens (17:e uppl.)Lawson, Kay. The Human Polity: A Comparative Introduction to Political Science. 4th ed. Boston: Houghton Mifflin, 1997.
MLA-referens (9:e uppl.)Lawson, Kay. The Human Polity: A Comparative Introduction to Political Science. 4th ed. Houghton Mifflin, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.