APA (7th ed.) Zitazioa
Cook, R. (2009). Intervention. G.P. Putnam's Sons.
Chicago Style (17th ed.) Zitazioa
Cook, Robin. Intervention. New York: G.P. Putnam's Sons, 2009.
MLA (9th ed.) Zitazioa
Cook, Robin. Intervention. G.P. Putnam's Sons, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.