TY - BOOK AU - F.J. Stevenson TI - Humus Chemistry : Genesis, Composition, Reactions SN - 0-471-59474-1 U1 - 631.417 PY - 1994/// CY - New York PB - John Wiley and Sons Inc N1 - F.J. Stevenson: Humus Chemistry : Genesis, Composition, Reactions. (2nd Ed) New York. John Wiley and Sons Inc, 1994. 0-471-59474-1--(631.417STE) ER -