000 00399nam a2200157Ia 4500
008 131111s9999 xx 000 0 und d
100 _aTrivedi,P R
245 _aEncyclopaedia of environmental science
260 _aNew Delhi
260 _bAkashdeep
260 _c1992
300 _avol i-xxv
650 _aEnvironmental Science
_aPollution
_aGeography
700 _aRaj,Gurdeep
763 _a2179
999 _c31249
_d31249