00283nam a2200109Ia 4500008004100000082001300041100003200054245003500086260002500121300001000146650001700156140113s9999    xx            000 0 und d  a631.4 G8  a"De Sigmond, Alexius A. J."  aThe principles of soil science  b"Thomas Murby, 1938"  a362p.  aSoil science