00294nam a2200109Ia 4500008004100000082002100041100002000062245004100082260002400123300001000147650002700157140113s9999    xx            000 0 und d  a631.42:54(02) L1  a" Hesse, P. R."  aA textbook of soil chemical analysis  b"John Murray, 1971"  a520p.  aSoil chemical analysis