ebrary, Inc. (2002). Scientific and policy considerations in developing smallpox vaccination options: A workshop summary. National Academy Press.
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Chicago Style (17th ed.) Zitazioa
ebrary, Inc. Scientific and Policy Considerations in Developing Smallpox Vaccination Options: A Workshop Summary. Washington, D.C.: National Academy Press, 2002.
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MLA (9th ed.) Zitazioa
ebrary, Inc. Scientific and Policy Considerations in Developing Smallpox Vaccination Options: A Workshop Summary. National Academy Press, 2002.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.