000 00321nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aKeshav Trehan
245 0 _aBiotechnology
250 _a1st Ed
260 _aNew Delhi
260 _bWiley Eastern Ltd
260 _c1990
650 _aBiotechnology
942 _cBK
999 _c16521
_d16521