000 00346nam a2200145Ia 4500
008 210101s1998 xx 000 0 eng d
020 _a817096735X
082 _a660.6 S 64 B
100 _aSingh, B.D
245 0 _aBiotechnology.
260 _aNew Delhi
_bKalyani publishers
_c1998
300 _a574
650 _aBiotechnology
942 _2ddc
_cBK
999 _c5409
_d5409