00505nam a2200205Ia 4500008004100000040000600041041001200047082001100059082001100070100001300081245002200094245001300116260001400129260003600143260000900179300005500188300001100243501002800254650001700282141004s9999    xx            000 0 und d  ca  aEnglish  a631.45  bNEG/SO  aSS  Negi  aSoil conservation  cSS  Negi  aDehra Dun  bBishen Singh Mahendra Pal singh  c1983  a88 p.                                               b21 cm   aKAUCOF                   aConservation