00383    a2200121   4500082001500000100001800015245007300033260005000106300002000156650001500176650004100191650002900232  a630.2bARO  aArora, R. C.   aDevelopment of agriculture and allied sectorsbcommand area approach  aNew DelhibS. Chand & Company Ltdc1976g1976  axvi,273p.c22cm  aTechnology  aMiscellany and scientific principles  aAgriculture & technology