00273nam a2200109Ia 4500008004100000082001500041100002500056245002600081260002900107300001000136650001700146140113s9999    xx            000 0 und d  a631.4.3 L2  a" Dakshinamurti, C."  aAdvanced soil physics  b"New Delhi : ICAR, 1972"  a249p.  aSoil physics