Gaston, K. J., & Spicer, J. I. (1998). Biodiversity: An introduction. Oxford ; Malden, MA, USA: Blackwell Science.
استشهاد بنمط شيكاغوGaston, Kevin J., و John I. Spicer. Biodiversity: An Introduction. Oxford ; Malden, MA, USA: Blackwell Science, 1998.
MLA استشهادGaston, Kevin J., و John I. Spicer. Biodiversity: An Introduction. Oxford ; Malden, MA, USA: Blackwell Science, 1998.
