Levy, J. (1973). Introductory microbiology. John Wiley & sons inc.
Chicago Style aipamenaLevy, Julia. Introductory Microbiology. London: John Wiley & sons inc, 1973.
MLA aipamenaLevy, Julia. Introductory Microbiology. John Wiley & sons inc, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.