000 00422nam a2200181Ia 4500
008 180424s9999 xx 000 0 und d
020 _a8121908590
084 _a574.5 V8
100 _a"Verma, P S"
245 0 _aEnvironmental Biology
250 _a\\200000ENGGPCX
260 _aS Chand
260 _b2000
260 _cNew Delhi
300 _a592p.
500 _aincludes index and biblioraphy
942 _cBK
999 _c104506
_d104506