Stevenson, F. J. Humus chemistry: Genesis, composition, reactions (2a. ed.). New York: c1994.
Chicago Style CitationStevenson, F. J. Humus Chemistry: Genesis, Composition, Reactions. 2a. ed. New York: c1994.
MLA CitationStevenson, F. J. Humus Chemistry: Genesis, Composition, Reactions. 2a. ed. New York: c1994.
Warning: These citations may not always be 100% accurate.