Benn S I & Peters R S. (1979). Social principles and the democratic state. S Chand.
Chicago Style aipamenaBenn S I and Peters R S. Social Principles and the Democratic State. New Delhi: S Chand, 1979.
MLA aipamenaBenn S I and Peters R S. Social Principles and the Democratic State. S Chand, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.