APA (7th ed.) Zitazioa
Coen, B., & Nadler, E. D. (2009). Dead silence: Fear and terror on the anthrax trail. Counterpoint : Distributed by Publishers Group West.
Chicago Style (17th ed.) Zitazioa
Coen, Bob, eta Eric David Nadler. Dead Silence: Fear and Terror on the Anthrax Trail. Berkeley: Counterpoint : Distributed by Publishers Group West, 2009.
MLA (9th ed.) Zitazioa
Coen, Bob, eta Eric David Nadler. Dead Silence: Fear and Terror on the Anthrax Trail. Counterpoint : Distributed by Publishers Group West, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.