00266nam a2200109Ia 4500082002500000100001500025245007200040260002500112300000900137500000500146700000500151  a338.10954bD229.ER.1  aDas, B. N.  aEvaluation of regional potential in foodgrain production in Indiab  aNew DelhibISIc1968  a16p.  a  a