Dyfyniad APA
Abbott, L. K., & Murphy, D. V. (2007). Soil Biological Fertility: A Key to Sustainable Land Use in Agriculture. Springer Netherlands. https://doi.org/10.1007/978-1-4020-6619-1
Dyfyniad Arddull Chicago
Abbott, Lynette K., and Daniel V. Murphy. Soil Biological Fertility: A Key to Sustainable Land Use in Agriculture. Dordrecht: Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-6619-1.
Dyfyniad MLA
Abbott, Lynette K., and Daniel V. Murphy. Soil Biological Fertility: A Key to Sustainable Land Use in Agriculture. Springer Netherlands, 2007. https://doi.org/10.1007/978-1-4020-6619-1.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.