000 00368nam a2200157Ia 4500
020 _a8887800910
040 _cPK-LaCSN
082 _bCHO
_a540
100 _aChoudhry, M. A.
245 0 _a101 Science experiments
260 _bChoudhry Academy
_aLahore
_c1990
300 _a32
942 _2ddc
_cBK
999 _c243035
_d243035