00391nam a2200145 a 450000500170000000800410001702000180005804100080007608200140008410000190009824500460011725000120016326400530017530000170022820260717092718.0260717s1987    ii            000 0 eng d  a9788122426175  aeng04a628.501541 aDe, Anil Kumar10aEnvironmental Chemistry /cDe, Anil Kumar  a7th ed. 1aNew Delhi :bNew Age International,cc1987 2010.  axvii, 366 p.