APA (7th ed.) Zitazioa

Johannsen, R. W. (1966). Democracy on trial. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Johannsen, Robert W. Democracy on Trial. New York: McGraw-Hill, 1966.

MLA (9th ed.) Zitazioa

Johannsen, Robert W. Democracy on Trial. McGraw-Hill, 1966.