000 00256nam a2200097Ia 4500
008 220201s1997 xx 000 0 eng d
100 _aSHARMA (BR)
245 0 _aTEXTBOOK ON ENVIRONMENT & POLLUTION AWARENESS
260 _bSATYA PRAKASHAN
_c1997
942 _2ddc
999 _c97260
_d97260