APA (7th ed.) Zitazioa
Television Trust for the environment. (1991). Coral reefs. Zeist, The Netherlands.
Chicago Style (17th ed.) Zitazioa
Television Trust for the environment. Coral Reefs. TVE Distribution Centre: Zeist, The Netherlands, 1991.
MLA (9th ed.) Zitazioa
Television Trust for the environment. Coral Reefs. Zeist, The Netherlands, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.