APA (7th ed.) Zitazioa
Brown, L. R., Flavin, C., & Kane, H. Vital Signs 1996: The Trends That Are Shaping Our Future. Norton.
Chicago Style (17th ed.) Zitazioa
Brown, Lester R., Christopher Flavin, eta Hal Kane. Vital Signs 1996: The Trends That Are Shaping Our Future. Nueva York, EUA: Norton.
MLA (9th ed.) Zitazioa
Brown, Lester R., et al. Vital Signs 1996: The Trends That Are Shaping Our Future. Norton.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.