000 00293nam a22001217a 4500
020 _a8183560717
082 _a628.5
_bYAD
100 _aYadav P R, Rajiv Tyagi
245 _aEnvironmental Biotechnology
260 _aNew Delhi
_bDiscovery publishing house
_c2006
300 _a302
942 _cBK
999 _c226030
_d226030