00285    a2200121   4500020001500000082001300015100001800028245002900046260004500075300001900120650001200139650001200151  a8176485322  a577bTRI  aTrivedi, P.R.  aEcology and environment   aNew DelhibA.P.H. Publishingc2004g2004  avi,202p.c22cm  aEcology  abiology