00260nam a2200109Ia 4500082002500000100001800025245003500043260005300078300000900131500000500140700000500145  a912.6309545bD866.AA  aDuggal, S. L.  aAgricultural atlas of Punjabb  aChandigarhbPunjab Agricultural Universityc1966  a90p.  a  a