000 00360 a2200145 4500
020 _a8176251046
082 _a333.7
_bGUP
090 _c15030
_d22556
100 _aGupta, Sunit
245 _aGlobal environment
_bcurrent status
260 _aNew Delhi
_bSarup & sons
_c2000
_g2000
300 _a[6],508p.
_c21cm
650 _aEnvironmental science
942 _cPR
999 _c43173
_d43173