000 00271nam a2200121Ia 4500
100 _aTrehan, Keshav
020 _a81-224-0129-5
942 _cBK
245 _aBiotechnology
260 _aWiley Eastern Limited, New Delhi
_c1990
082 _a574.5 Tre
300 _aviii,282
999 _c33971
_d33971