000 00368nam a2200145Ia 4500
040 _cPK-LaCSN
082 _a570
_bSHA
100 _aShakoori, Prof. Dr. A.R
245 0 _aBiology ptb for class 11
260 _c2022
_bPunjab Curriculum and Text Book Board
_aLahore
300 _a329
942 _cTR
999 _c859789
_d859766