Gaston, K. J., & Spicer, J. I. (2004). Biodiversity: An Introduction (2nd ed.). Blackwell.
Chicago Style aipamenaGaston, Kevin J., and John I. Spicer. Biodiversity: An Introduction. 2nd ed. Oxford: Blackwell, 2004.
MLA aipamenaGaston, Kevin J., and John I. Spicer. Biodiversity: An Introduction. 2nd ed. Blackwell, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.