APA (7th ed.) Zitazioa
Robertson, I. (1987). Sociology (3rd ed.). Worth publishers.
Chicago Style (17th ed.) Zitazioa
Robertson, Ian. Sociology. 3rd ed. New York: Worth publishers, 1987.
MLA (9th ed.) Zitazioa
Robertson, Ian. Sociology. 3rd ed. Worth publishers, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.