Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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