00323nam a2200121Ia 4500008004100000082002100041100002200062245001800084260003800102300001000140490003300150650001800183140113s9999    xx            000 0 und d  a631.44:631.47 M1  a" Johnson, W. M."  aSoil taxonomy  b"Castle house publications, 1981"  a754p.  aAgriculture handbook no. 436  aSoil taxonomy