Harrigan, J. J. (1994). Politics and policy in states and communities (5th ed.). HarperCollins College Publishers.
Chicago-referens (17:e uppl.)Harrigan, John J. Politics and Policy in States and Communities. 5th ed. New York: HarperCollins College Publishers, 1994.
MLA-referens (9:e uppl.)Harrigan, John J. Politics and Policy in States and Communities. 5th ed. HarperCollins College Publishers, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.