00357    a2200133   4500020001500000082001600015100001900031245004000050260004900090300001800139650001200157650003200169650002200201  a8185375623  a577.27bMIT  aMitra, Abhijit  aFoundation of environmental science  aDelhibNarendra Publishing Housec2000g2000  ax,165p.c22cm  aEcology  aEffects of human on ecology  aAffecting ecology