000 00424nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
020 _a8174888454
084 _a574.5 P13
100 _a"Pandey, G N"
245 0 _aEnvironmental Science and Technology
250 _a\\199800ENGGPSX
260 _aAnmol Publications
260 _b1998
260 _cNew Delhi
500 _aincludes index and biblioraphy
942 _cBK
999 _c64413
_d64413