APA aipamena

Barker, R. (1971). Studies in Opposition. Macmillan.

Chicago Style aipamena

Barker, Rodney. Studies in Opposition. London: Macmillan, 1971.

MLA aipamena

Barker, Rodney. Studies in Opposition. Macmillan, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.