Humic substances : nature's most versatile materials - Ghabbour, Elham A.; Davies, Geoffrey. 1942-; International Humic Substances Society; Humic Substances Seminar 2002 : Northeastern University) (New York : Taylor and Francis, 2004)
'Selected papers presented in 2002 at IHSS 11 and Humic Substances Seminar VI at Northeastern University'--P. 4 of cover
Includes bibliographical references and index
Keywords: Humus -- Congresses; Soils -- Humic acid content -- Congresses