00413    a2200145   4500020001500000082001600015100001800031245005800049260003400107300002200141650004100163650001400204650002700218700002200245  a817754201X  a363.73bPUR  aPurohit, S.S.  aEnvironmental pollution bcauses, effects and control  aJodhpurbAgrobiosc2006g2006  a[xxi],601p.c22cm  aOther social problems and services    aPollution  aEnvironmental problems  aAgrawal, Ashok K.