Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.