Harper, D. R. (2012). Viruses: Biology applications control. Garland Science.
Chicago Style aipamenaHarper, David R. Viruses: Biology Applications Control. New York: Garland Science, 2012.
MLA aipamenaHarper, David R. Viruses: Biology Applications Control. Garland Science, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.