Παραπομπή σε μορφή APA (7η εκδ.)
Humic Substances Seminar Northeastern University, Royal Society of Chemistry (Great Britain), ebrary, Inc, Ghabbour, E. A., & Davies, G. (2001). Humic substances: Structures, models and functions. Royal Society of Chemistry.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Humic Substances Seminar Northeastern University, Royal Society of Chemistry (Great Britain), Inc ebrary, Elham A. Ghabbour, και Geoffrey Davies. Humic Substances: Structures, Models and Functions. Cambridge: Royal Society of Chemistry, 2001.
Παραπομπή σε μορφή MLA (9th εκδ.)
Humic Substances Seminar Northeastern University, et al. Humic Substances: Structures, Models and Functions. Royal Society of Chemistry, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.