00413nam a2200121Ia 4500008004100000100003200041245006400073260003600137300000800173942000700181952008600188999001700274140113s9999    xx            000 0 und d  a"Lal, R. & Greenland, D.J."  aSoil Physical Properties and crop production in the tropics  a1979bJohn Wiley & SonscU.S.A.  a551  cBK  00104070aVTLbVTLd2014-01-13l0pVBK4121r2014-01-13 00:00:00w2014-01-13yBK  c60705d60705