000 00283nam a22001097a 4500
999 _c519271
_d519271
082 _aPKP YA57 B521
100 _aN.C.E.R.T.
_930009
245 _aBiology
_bTextbook for class XII
_cby N.C.E.R.T.
260 _aNew Delhi
_bN.C.E.R.T.
_c2006
300 _a286p.
650 _aBiology
_930010