000 00365nam a2200145Ia 4500
008 241227s9999 xx 000 0 und d
020 _a0
082 _a628
_bVAR
100 _aVarandani, S.
245 0 _aBasics of environmental studies
260 _aAllahabad :
_bBooks India,
_c1994
300 _a202.
365 _a0
650 _aSanitary municipal engineering
999 _c151735
_d151735