000 00343nam a2200145Ia 4500
008 131111s9999 xx 000 0 und d
100 _aSrivastava N. Yogendra
245 _aEnvironmental pollution
260 _aNew Delhi
260 _bAshis publishing house
260 _c1983
300 _a180p.
650 _aPollution
763 _a14513
999 _c58149
_d58149