00267nam a2200097Ia 4500008004100000082002100041100002500062245003800087260003600125300000800161140113s9999    xx            000 0 und d  a631.4:576.8   K1  a"Alexander, Martin."  aIntroduction to Soil Microbiology  a1961bJohn Wiley & SonscLondon  a472