000 00288nam a2200109Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aAGRAWAL ( DEVENDRA)
245 0 _aBASIC ENVIRONMENTAL ENGINEERING
250 _aI
260 _bVIGHYAN AND TECHNIKI PRAKSHAN JAIPUR
942 _2ddc
_cBTECH
999 _c5707
_d5707