000 00289nam a22001217a 4500
020 _a8127219606
082 _a660.6 SIN/B
100 _aSingh, B D
245 _aBiotechnology /
_cby B D Singh
260 _a. - Ludhiana
_b: Kalyani publishers
_c, 1998
300 _a672 pages
942 _cBK
999 _c678781
_d678781