00339nam a2200121Ia 4500008004100000082001700041100002600058245002400084260002600108300001000134600003000144650004300174140224s9999    xx            000 0 und d  a631.415.2 N7  aMahapatra, I.C. et al  aAcid soils of India  aNew DelhibICARc1997  a270p.  a I.C.Mahapatra and others  aAcid soils,Soil Science,Soil Chemistry