00447nam a2200145Ia 4500008004100000082001900041100001400060245006100074260003600135300001200171490002700183600002800210600003000238650003300268140224s9999    xx            000 0 und d  a631.42' 412 M4  aDewis, J.  aPhysical and chemical methods of soil and water analysis  aNew DelhibOxford and IBHc1984  ax,275p.  aFAO soils Bulletin, 10  a J.Dewis and F.Freitas.  aFreitas, F., joint author  aSoil analysis,Soil chemistry