000 00386nam a2200157Ia 4500
008 170519s9999 xx 000 0 und d
020 _a0-07-460442-2
041 _aEnglish
082 _a620.8/RAO/ENV
100 _aM NARAYANA RAO
245 _aENVIRONMENTAL ENGINEERING
260 _bTATA MCGRAW HILL
_aNew Delhi
_c1993
300 _cXP,268P
650 _aENGINEERING
942 _cBK
999 _c77756
_d77756