000 00255nam a2200097Ia 4500
008 230508s1997 xx 000 0 und d
041 _aeng
100 _aDEODHAR & GOKHALE
245 _aENVIRMENTAL ENGINEERING SYSTEMS
260 _bVRINDA PUBLI. JALGAO
_c1997
999 _c314426
_d314426