00575nam a2200169Ia 4500008004100000082002100041100002100062245003800083260005000121300001300171490003700184600002000221650003900241942000700280952010100287999001700388140224s9999    xx            000 0 und d  a631.417.7:547 M7  aKumada, Kyoichi.  aChemistry of soil organic matter.  aTokyobJapan Scientific Societies Pressc1987  axi,241p.  aDevelopments in soil Science, 17  aKyoichi Kumada   aSoil Chemistry,Soil organic matter  cBK  00104070aKSDbKSDd2014-02-24l0o631.417.7:547 M7p5585r2014-02-24 00:00:00w2014-02-24yBK  c92136d92136