000 00452nam a2200157Ia 4500
008 210707s1981 xx 000 0 und d
041 _aeng
082 _a614 NEEI
100 _aNEERI;
245 _aInstrumentation in environmental engineering.
260 _aNagpur
_bNational environmental engineering research institute
_c1981
300 _aviii,13-8 p
563 _aPB
650 _aHealth
906 _aInstrumentation environmental engineering
999 _c180285
_d180285