Donovan, J. C. (1978). Democracy at the crossroads: An introduction to American government. Holt Rinehart & Winston.
Chicago-referens (17:e uppl.)Donovan, John C. Democracy at the Crossroads: An Introduction to American Government. New York: Holt Rinehart & Winston, 1978.
MLA-referens (9:e uppl.)Donovan, John C. Democracy at the Crossroads: An Introduction to American Government. Holt Rinehart & Winston, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.