1. Humic substances : nature's most versatile materials /: nature's most versatile materials. (2003) Other Names: Ghabbour, Elham A; Davies, Geoffrey, 1942-; International Humic Substances Society.; Humic Substances Seminar, 6th Record Type: Book Extent: 1 online resource (352 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗