Dyfyniad APA
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.
Dyfyniad Arddull Chicago
Humic Substances Seminar Northeastern University, Royal Society of Chemistry (Great Britain), Inc ebrary, Elham A. Ghabbour, and Geoffrey Davies. Humic Substances: Structures, Models and Functions. Cambridge: Royal Society of Chemistry, 2001.
Dyfyniad MLA
Humic Substances Seminar Northeastern University, et al. Humic Substances: Structures, Models and Functions. Royal Society of Chemistry, 2001.
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