000 00307nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a620.23 CHH-E
100 _achhatkial
245 0 _aEnvironmental Noice Production and its Control
260 _aNew Delhi
_bAnmol
_c1989
300 _a301p.
942 _2ddc
999 _c21747
_d21747