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.
芝加哥风格引文Humic Substances Seminar Northeastern University, Royal Society of Chemistry (Great Britain), Inc ebrary, Elham A. Ghabbour, 与 Geoffrey Davies. Humic Substances: Structures, Models and Functions. Cambridge: Royal Society of Chemistry, 2001.
MLA引文Humic Substances Seminar Northeastern University, et al. Humic Substances: Structures, Models and Functions. Royal Society of Chemistry, 2001.
警告：这些引文格式不一定是100％准确.