00441nam a22001577i 4500001001000000005001700010008004100027082002200068100002800090245006300118250001000181260004300191300001700234650001400251020001800265SXC03028420260819093851.0260101s2010    ii            000 0 eng d  a577.77 MIS-E2222  aMisra, S P; Pandey, S N10aEssential environmental studies /cMisra, S P; Pandey, S N  a2 ed.  abAne Books Pvt.Ltd., New Delhi,c2010  ap. ;c22 cm. 0aCircadian  a9781420077469