00546    a2200193   4500020001500000082001600015100002700031245004800058260005400106300001600160650001200176650002800188650002400216700002300240700002100263700002400284700002300308700002100331  a8170412293  a577.14bENV  aChhatwal, G. R.  eed.  aEnvironmental analysisbair, water and soil  aNew DelhibAnmol Publications Pvt Ltdc1989g1989  a204p.c22cm  aECOLOGY  aENVIRONMENTAL CHEMISTRY  aECOSYSTEM PROCESSES  aNagahiro, T. eed.  aKatyal, T. eed.  aKatyal, Mohan eed.  aMehra, M. C. eed.  aSatake, M. eed.