000 00408nam a2200145Ia 4500
005 20250405085119.0
008 240923s9999 xx 000 0 und d
100 _aCentral Public Health Engineering Research I
245 0 _aEnvironmental pollution : Proceedings of symposium on environmental pollution -
260 _aNagpur
260 _bC P H E R I
260 _c1973
300 _a372p.
942 _cBK
999 _c36276
_d36276
650 _aPollution - Air