000 00278nam a22001217a 4500
999 _c409
_d409
020 _a9788131304563
082 _a333.708
100 _aP.C.Joshi & Namita Joshi
245 _aA Text Book of Environmental Science
260 _aNew Delhi
_bAPH
_c2009
300 _a308
942 _cBK
_01