APA-referens

Bardgett, R., Usher, M., & Hopkins, D. (2009). Biological Diversity and Function in Soils. Cambridge University Press.

Chicago-stil citat

Bardgett, Richard, Michael Usher, och David Hopkins. Biological Diversity and Function in Soils. Cambridge University Press, 2009.

MLA-referens

Bardgett, Richard, et al. Biological Diversity and Function in Soils. Cambridge University Press, 2009.