00437nam a2200157Ia 4500008004100000020001800041082001800059100002600077245003500103260003800138300000800176650001400184650002000198653003800218700002300256170901s2008    xx            000 0 und d  a9788171392254  a333.716bT79P  aTrivedi, Priye Ranjan 0aPrakritik Sansadhan Sanrakshan  aNew DelhibGyanda Prakashanc2008  a144  aEconomics  aSocial sciences  aConservation of natural resources  aSingh, Uttam Kumar