00282nam a2200097Ia 4500008004100000082001500041100001400056245005300070260004100123700002000164220204s9999    xx            000 0 und d  a631.8bSCH  aERTEL,  H 0aHundred years of successful fertilizer practice.  aFrankfurtbSauerlanders Verlagc1959  aSCHMITT, Ludwig