00291nam a2200109Ia 4500082002200000100001600022245007200038260005100110300001000161500000500171700000500176  a338.1633bM281.AE  aMann, K. S.  aAnalysis of the expected shifts in cropping pattern of the Punjabb  aLudhianabPunjab Agricultural Universityc1967  a161p.  a  a