00616nam a22001932  4500001001100000005001700011008004100028020001700069040001500086100002800101245009500129250001300224260003600237300001800273650004600291650003900337650004300376852000300419000002512020151217152308.0141204s         xx           000 0 eng d  a1482234459 :  aKABUcKABU1 aTan, Kim H.@000018551510aHumic matter in soil and the environment :bprinciples and controversies /cby Kim H. Tan.  a2nd  ed.  aBoca Raton :bCRC Press,c2014.  axxxi, 463  p. 0aHumusxEnvironmental aspects.@0000185516 0aHumusxBiodegradation.@0000185517 0aSoilsxHumic acid content.@00001855181