000 00274nam a2200121Ia 4500
100 _aSrivastava, Yogendra N
020 _a81-7024-210-X
942 _cBK
245 _aEnvironmental Pollution
260 _aAshish, new delhi
_c1989
082 _a363.73 Sri
300 _avii; 84
999 _c64515
_d64515