00343nam a2200133Ia 4500008004100000082001800041100002700059245002700086260002600113300001000139600001900149600001900168650002200187140113s9999    xx            000 0 und d  a631.417  L0.2  a" McLaren, A. Douglas"  aSoil biochemistry v. 2  b"Marcel Dekker, 1971"  a527p.  a" Skujins, J."  a" Skujins, J."  aBiochemistry-Soil