APA (7th ed.) Zitazioa

Roberts, B. (2002). Biographical research. Open University Press.

Chicago Style (17th ed.) Zitazioa

Roberts, Brian. Biographical Research. Buckingham ; Phildelphia: Open University Press, 2002.

MLA (9th ed.) Zitazioa

Roberts, Brian. Biographical Research. Open University Press, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.