000 00421nam a2200193Ia 4500
008 240117s9999||||xx |||||||||||||| ||und||
020 _a81-7556-049-5
082 _aV.P/E
082 _b574.192
100 _akudesia
100 _av.p
100 _bu.k
245 0 _aenvironmental and bio-chemistry
245 0 _bjetley
260 _ameerut
260 _bpragati prakashan
260 _c1991
650 _abiology
999 _c16010
_d16010