Smith, J. E. (2009). Biotechnology (5th ed.). Cambridge University.
Chicago Style aipamenaSmith, John E. Biotechnology. 5th ed. New Delhi: Cambridge University, 2009.
MLA aipamenaSmith, John E. Biotechnology. 5th ed. Cambridge University, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.