000 00278nam a2200085Ia 4500
008 150310s9999 xx 000 0 und d
100 _aI S T E NEW DELHI
245 _aSUMMER SCHOOL ON RECENT TRENDS IN POLLUTION CONTROL (19-30 MAY 1986)
260 _c1986
_bN.S.S. COLLEGE OF ENGG. PGT.
999 _c9901
_d9901