Dumbald, E. (1964). The constitution of the United States. Okalahama press.
Chicago Style aipamenaDumbald, Edward. The Constitution of the United States. USA: Okalahama press, 1964.
MLA aipamenaDumbald, Edward. The Constitution of the United States. Okalahama press, 1964.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.