00273nam a2200109Ia 4500082002500000100001800025245006600043260002800109300001600137500000500153700000500158  a338.476318bSa131.FE  aSahota, G. S.  aFertilizer in economic development; an econometric analysisb  aNew YorkbPraegerc1968  axxii, 240p.  a  a