APA (7th ed.) Zitazioa
ebrary, Inc. (1999). Assessment of future scientific needs for live variola virus. National Academy Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Assessment of Future Scientific Needs for Live Variola Virus. Washington, D.C.: National Academy Press, 1999.
MLA (9th ed.) Zitazioa
ebrary, Inc. Assessment of Future Scientific Needs for Live Variola Virus. National Academy Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.