000 00348nam a2200157Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
020 _a81-85842-69-8
082 _a330
082 _bSHA/A
100 _adr.b.k
_bsharma
100 _bdr.hkaur
245 0 _aAir Polution
260 _ameerut
260 _bkrishna prakashan mandir
260 _c1993
999 _c7139
_d7139