Ghabbour, E. A., & Davies, G. (2001). Humic substances: Structures, models and functions. Cambridge: Royal Society of Chemistry.
Παραπομπή Chicago StyleGhabbour, Elham A., and Geoffrey Davies. Humic Substances: Structures, Models and Functions. Cambridge: Royal Society of Chemistry, 2001.
Παραπομπή MLAGhabbour, Elham A., and Geoffrey Davies. Humic Substances: Structures, Models and Functions. Cambridge: Royal Society of Chemistry, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.