00423nam a2200169Ia 4500008004100000041001200041082001100053100001400064100001100078245004800089260000900137260003900146260000900185300001500194365002500209650001900234150901s9999    xx            000 0 und d  aEnglish  bSEN/ST  aSen B R    eEditor  aStatistics of crop responses to fertilizers  aRome  bFood and  Agriculture Organization  c1966  a112  Pages  aU.S.D.2.00            aBiofertilizers